Release Notes

new - If the target drive becomes unavailable, the user can now Cancel the copy, rather than just have a Retry option.

changed - The developer has downsized to a sole proprietorship from a corporation. The new company name is 'Double Image Systems'.

new - The Double Image installation build package has a new code sign certificate applied. The embedded digital signature provides verification to the user  that the identity of the author or build system is valid and that the object code has not been modified.

fixed - When copying a new child directory to the target, a parent directory would have its 'Date modified' changed to the current date/time. Directory 'Date modified' is now properly synched between source and target directories.

fixed - When a file system was not NFTS then incorrect time-stamp calculations could occur during a copy process. This would sometimes cause equal source and target files to re-copy.

fixed - Since build 7.0.59 a backup process may not create a new directory on certain NAS target drives when the file system was not NTFS. This is now fixed.

fixed - During a restore on Windows 10 (and higher) there can be registry sub-keys that will not permit their restore. Previously, when an error of this type would occur the restore to the registry would not complete restoring the remaining registry keys.

Now, the restore process will log the error condition and continue with the registry restore. Keys that are affected by the error do not have permissions to allow a replacement, even when granted Backup User rights. The non-permitted keys are those related to machine/system credentials and are likely in place without needing specific sub-key restores.

IMPORTANT: After a registry restore, the target machine needs to be restarted before any future restores are done.

fixed - With the recent fix announced July 5, 2018, a couple problems remained and are now fixed in this follow-up release.

1. When a single file being copied to a network device required the creation of a new parent directory then a "Path not found" error could occur preventing the copy of the single file.
   
2. In some cases when a new directory was being created, a "Couldn't write the target file..." error could occur, if part of the parent path was not previously created. This would only occur sometimes with the new code that creates extended paths.

fixed - Starting with the Windows 10 Anniversary Update, April 2018, files being scanned on the target drive that have a special character in the first position would cause a scan loop. The special characters are any character that is not alphanumeric.This condition would only occur when copying to or from a device over a network and while running on Windows 10.

Double Image now creates extended paths for network files (which normally would not be required unless the path name was greater in length than 255 characters). By creating extended paths, this tells Windows 10 to not fiddle with the path name and by default to always permit maximum path length sizes up to 32,767 characters (less a few characters for the extending codes).

fixed - Not all files or directories having an associated Reparse point (symbolic links, junction points) were being bypassed during the scan and copy phase. Previously this could cause data to be re-copied.

Symbolic Links and Junction Points are now bypassed to ensure integrity of the target files.

There are also some files, not tagged as such, and are now bypassed for copying when marked by the file system as a Reparse point file.

fixed - Sometimes the buffer size for setting security attributes on a target directory would be too small. This has been fixed by incrementally increasing security descriptor memory allocation, until the size is acceptable.

fixed - Major Delete: a major delete problem related to selecting different 'File Name Options' is now fixed.

fixed - Depending on the target device, writing to the target may have no buffering (no caching) set, and as a result when attempting to set the file size of an updated or new file, the result could have been inaccurate.

fixed - Directory attributes were not always updated when copying from source to target. Now when the target directory's attributes are different than the source, the directory is re-written with the attributes of the source.

For example, a target directory previously could have SYSTEM, HIDDEN, READ-ONLY attributes (or combination), and may not have been updated from the source with the same directory name.

fixed - If only a file was selected under a directory path and none of the parent directories were selected then an error could occur and be logged as "Couldn't open the target file ...", and the file would not be copied.

enhanced - The Double Image IO buffer size has been substantially increased. This may create faster backups on local machine devices that permit caching (buffering of IO). This may not increase network backup speed.

open - When selecting Tools, Report to create a comparison report of source to target files, and using the Major Delete option, the delete Total count may not be accurate. (Not fixed in this build for the interest of getting this build out.)

Added - The 'Major Delete ' option is now enabled. Detail documentation for the 'Major Delete' topic is in the Help document under the 'Delete options'. This option should be used with caution, so reading the Help topic is important. When selecting the Major Delete option, Double Image will:

1. perform a 'Minor Delete' by deleting orphan files on the Target path that are not found in the Source paths and sub-directories.
2. perform a 'Major Delete' also, by deleting directories and files in the root Target path that are not in any of the backup Source paths.
   
   Example when using Major Delete:

The backup profile's target path is:

S:\backup

The backup profile's source paths are:

C:\*.*
D:\accounting\*.*
\\win7pro\users\clem\*.*

Before the backup the target drive contains 4 directories and 1 file on the root of s: drive.

S:\backup\before
S:\backup\c
S:\backup\waybefore
S:\images
S:\text.txt

After the backup and using the Major Delete option the target drive contains 4 root directories and one file:

S:\backup\c
S:\backup\d\accounting
S:\backup\win7pro\users\clem
s:\images
s:\text.txt

After the backup s:\images directory also remains and so does s:\text.txt because they were not included in the backup profile's target path S:\backup.  The 2 directories S:\backup\before and S:\backup\waybefore were deleted because they are not included in any of the source paths and had the same root directory as the target path.

Fixed - During a restore process and the backup mode 'File Name Option' was set to 'Use absolute file names when copying', it was possible to not do the actual restore.

Suggestion: The option 'Use absolute file names when copying' is normally used when copying more than one source drive from one or more computers in a single backup session.

Added - It is possible that a firewall or Windows itself can be peeking at a target file (for a short time) in advance of Double Image attempting to update it. In this case the system produces an error to Double Image: ERROR_SHARING_VIOLATION. Double Image will now attempt to open-write the target file several times, while pausing for several milliseconds between attempts. As a result the file is usually released giving Double Image success in re-creating the target file. The log will only receive an entry of the event if the target file could not be updated.
Fixed - It was possible for a Double Image user to experience a 'expired key' problem after a period of use usually more than 2 years from the original order date. This is resolved in this release.
Fixed - On the copy engine window in release 7.0.55, the Remaining and Elapsed seconds values could show zero without changing.

Fixed - Previously, target path names greater than 255 characters in length could cause an error. This is now resolved.
Fixed - Previously, the Tools, Report, 'Report on files selected for backup' could cause an error or looping condition. This is now resolved.

New - A a new web-based Help Desk is available for Double Image users and evaluators.

• Submit support tickets
• Communicate with staff
• Make recommendations
• View ticket status
• Access the knowledgebase

https://double-image.com/helpdesk/
New - Following a major Microsoft Windows 10 update, the Windows Task Scheduler (WTS) entries created by Double Image may not appear to run as you might expect.
Condition: When modifying or creating a Double Image scheduled task and the option 'Run only when user is logged on' is NOT checked, a message is now presented to the admin user asking to confirm the non-selection.
If the 'Run only when user is logged on' option remains unchecked, the message provides guidance and additional steps to take for running Double Image under NTAUTHORITY\SYSTEM. When SYSTEM is defined as the user, then any logged on users (admin or non-admin) can continue working without seeing Double Image run. The Double Image user interface is not presented at run time in this case.
If the scheduled task requires the UI be presented, then a 'Try Again' is available offering the admin user to select the option.
Read more about 'Scheduling':
https://double-image.com/helpdesk/knowledgebase.php
New - As of 2016 and later, publications of Double Image compiled code and installation packages are signed with SHA-256 with RSA Encryption. The Double Image code is now dual-signed allowing the operating system to select the highest encryption available from the application's certificate. With SHA-256 RSA as part of the Double Image certificate, your operating system will choose it, unless your system is XP and not current by Windows update. At the time Double Image is built into a software installation package, it is required to go through a code signing process, whereby a Certificate Authority (CA) issued code sign certificate is used to code sign the executable and installation setup files. When the install package is run and Double Image is installed (only permitted by an Administrator user), then the installer code sign certificate is presented to the admin user before the install occurs; giving the admin user the capability to examination the certificate. Also, the operating system will alert the user should the certificate not be valid.Also see articles related to Security and Certificates:
https://double-image.com/helpdesk/knowledgebase.php
How To - Slow network speed. It seems that a Windows 10 update has caused changes with network I/O during one of its recent updates. This may not effect everyone, however many Windows users will experience a slower network throughput when using certain adapters. This problem is not caused by Double Image, however when Double Image does copy from one device to another and uses the network, copying can be much slower until the adapter settings are changed to resolve the problem.
To learn how to resolved this problem by making adapter setting changes, see article related to 'Slow network speed when copying files':
https://double-image.com/helpdesk/knowledgebase.php
How To - See knowledgebase article on how to 'Backup to & from Dropbox using Double Image'
https://double-image.com/helpdesk/knowledgebase.php

Fixed - Directories referenced in the backup target are now audited to ensure that their timestamps, and attributes are identical to the source directories. This is done regardless if the target directory is new or has files that are being updated. As a result copy sessions could be slower then before.
Fixed - Since build 7.0.50, directories could be marked with the attributes of the last file within the last directory copied. Therefore, in the case where a Hidden, System file was the last files of a copied directory, it was possible for the next copied directory to inherit those same attributes, making that directory Hidden and/or System. Without having the option setting in Explorer to View Hidden, System files it could seem as if the copied directory did not exist. This is corrected in this build.
Fixed - Previously, copying of ACLs (Security attributes) would occur to network computers when not expected so. Now ACLs will only be copied when both the source and target drives are on the local machine, and the file system is Windows NTFS on both drives (this applies to attached external, internal drives and flash disks).
Fixed - Registry backups will no longer fail when the windows folder is not included in the backup and the target is a non-existent sub-directory. This condition could previously occur only when selecting the copy option 'Always back up the registry files of any computer that has any other files checked for back up'.
The problem would not occur when choosing the copy option 'Back up the registry files on a computer if that computer has it's Windows system folder backed up'

Changed - Code sign certificate updated.

Added - The EFS encryption copy feature was added in this release. This new option set gives users the ability to choose from 4 different options related to file encryption on Windows NTFS file systems.

• Keep the target files encryption attributes equal to the source files encryption attributes (default, if target is Windows NTFS). If the file is encrypted on the source, it is encrypted on the target. If the file is decrypted on the source, it is decrypted on the target.

• Encrypt target files as they are copied
  Double Image will encrypt all Windows NTFS target files during the copy process. A warning message is presented (unless turned off) to alert the user of this intended action.

• Decrypt encrypted files as they are copied
  Double Image decrypts all encrypted target files during the copy process.

• Do not encrypt or decrypt files regardless of encryption attributes
  If the file is encrypted on the source and not encrypted on the target, Double Image makes no encryption changes to the target file.

Added - A new copy option has been added 'Never copy ACLs'.
By default security/permissions for files are copied from the source to the target on Windows controlled NTFS drives. There may be cases where the user prefers this not to occur. If this option is selected, then the security/permissions are defined by the target drive or folder and therefore inherited at the target level (where the file is copied to) and not defined by the source (where the file is copied from).
Changed - Thruput copy speed is noticeably better.
Fixed - Previously an error could occur causing a file copy to fail with error: 'Couldn't open the target file to set EOF (32). This error could occur when copying files to a Windows 10 drive over a network.

Open - Remote registry restore does not complete on the last HKU subkey, however at reboot/restart this key is rebuilt by the operating system.
Fixed - Better control of network computer presentation. Previously a computer might not show as expected.  The remote logon is also done better.
Changed - If during a copy session a file is deleted from the source by a running application of a user, a Warning message is issued to the log instead of an Error message.
Fixed - Changes to {F5} Refresh {Ctrl}{F5}. Refresh of tree was not fully working unless the user did {Ctrl}{F5}. This is now working where a true Refresh of the tree will occur on F5, on Close and on End of backup/restore. {F5} does a tree and directory refresh. {Ctrl}{F5} does the same as {F5} refresh and in addition clears hidden drives or network computer connections that previously had error condtions. The held error conditions prevent timely attempts to re-connect during normal {F5} refresh actions. These changes will ensure that the tree shows the most recent indicators, like the timestamps, 'Matching'...
Fixed - 'Report on files selected for backup' was previously not working as expected. 'Report on files selected for backup' produces a log entry for all files that are selected for backup. This includes shares, folders and files that are checked for backup or that have a parent folder selected.
The log is detailed with Date & Time, Event, Source Time, Source File path. On viewing the log, the log may be sorted on any of these titles. This offers the user to learn the oldest, newest files on a drive, system or systems.
Since the 'Report on files selected for backup' log creates a list of all source files, the Log Find feature can be helpful to find a file or the beginning of a list of files in the source that meet certain criteria. For example, let's say you copy your entire C drive to a backup share folder. You then decide you want to learn if any files are on your C drive contain the word 'gaggle'. After running a detailed report you view the log and use the log 'Find' feature to create search criteria that is equal to or contains the string(s) you need to find. Read more about Reporting details in {F1} Help.
Changed - Memory: heap memory reserve size and stack reserve size are reduced for all platforms. This will improve memory resources particularly for XP users. Thruput efficiency will also improve on all systems.
Changed - The 'Major Delete' option has been temporarily disabled. If a profile currently shows this option selected, the results are the same as 'Minor Delete'.
Fixed - Target path not always saved when mouse not moved or Enter not done.  Previously, when leaving the mouse in the 'Backup To:' pane and imediately pressing the Save icon, the target path may not update to the profile.
Changed - Option is disabled: 'Always back up the registry files of any computer that has any other files checked for back up'
Users should now use 'Back up the registry files on a computer if that computer has it's Windows system folder backed up' see WebHelp
This applies to the local computer backups and remote registry backups.
Changed - View menu - show or not show excluded files in the backup and restore tree. Below are the View options that are used as on/off toggles to show or not show:

• 'Show without Excluded Files' (default)
• 'Show with Exlcuded Files'
  

• Excluded Wildcards see WebHelp
• Folders and files marked as omitted by default, like System Volume Information, hyberfil.sys, pagefile.sys, Recycle Bin, Swapfile.sys, Windows Prefetch. see WebHelp

Changed - View menu - a toggle option has been updated to show or not show excluded files in the backup and restore tree.

• 'Expand To Only Checked Items' (default)
• 'Collapse to Root Items'

Expand To All Checked' (default) - will expand the file tree to show all the selected folders and files for backup or restore.'Collapse to Root Items' - will show only the root folders in the file tree. Root folders are Computer, Network and drive letters.
* use this toggle option in conjunction with the ''Show Only Checked Items' View option to view the file tree in 4 different showings.
Changed - View menu - a toggle option has been updated to show or not show excluded files in the backup and restore tree.

• 'Show Checked and Checked Items'
• 'Show Only Checked Items'

'Show Only Checked Items' (default) - shows only the checked items in either the collapsed tree or the expanded to all checked tree.
Show Checked and Checked Items' - shows both checked items and unchecked items in the file tree for the collapsed tree or the expanded tree. Use this toggle option in conjunction with the 'Collapse to Root Items' View option to view the file tree in 4 different showings.
Fixed - The Error (3) will not produce 'Unrecoverable error…' on Open for read, and Read. Previously the error could have occurred when a file was open during the scan phase and removed by an application or user before the copy phase, and during the same backup job.
Update - 'swapfile.sys' was added to the default 'Omitted Paths' (files). This for Windows 8 users.
Fixed - When a firewall prevented access to a network making it no longer available, the user only had ‘Cancel Copy’ as an option from the Error Message. Now, the user can 'Retry' following external changes that stopped network traffic.
Changed - Terminal Server aware is not applied in Double Image.
Reason - if an application is Terminal Server aware, it must neither rely on INI files nor write to the HKEY_CURRENT_USER registry during setup. Since Double Image relies on writing to the registry with its backup and restore sessions, this option is not applied.
New - The Double Image code certificate has been updated and is current. The code certificate ensures that the software came from HII. Also this certificate protects the Double Image release from alteration after publication. The user may view the certificate at run time or by viewing the properties of the 'Double Image.exe' file. The default location for installation is:  '%SystemDrive%\Program Files (x86)\Double Image Systems\Double Image\Double Image.exe'.
Fixed - Double Image could have a heap leak when the backup or restore tree exceeded a large number of tree elements, particularly when many tree elements were selected and deselected under parent folders. Also, each time the tree was rebuilt the number of GDI objects would increase which could also cause this problem when exceeding the maximum allowed.
Fixed - Selected non-existent source files now show as warnings in the backup log and the report logs. These entries are usually a result of selecting a file on the source and then at some point deleting the source file for reasons only the user knows; then when Double Image is run and the file no longer exists on the source and is still shown as a selection in a backup profile, the user only sees a 'skipped' count in the progress dialog and the log final summary entry.
Fixed - Prior to this release network references to '\\localhost' produced the same functionality as that of a remote network computer reference. As a result, encrypted files would not be copied either to or from 'localhost'. This is now corrected where 'localhost' is known to be local and encrypted files will be copied via a 'localhost' reference.
Note that Windows EFS encrypted files will not be copied when the security attributes are not recognized on the remote machine(s):

• The target is a a non-local target network drive.
• The target is a drive that does not have a Windows NTFS file system.
• The source is a non-local network drive.

Fixed - Adjusted timestamp tolerance for Buffalo TeraStation NAS devices.  Previously some files that did not need to be copied were re-copied during a backup session.
Update - Applied new code sign certificate to Double Image 7.1 starting 2014 April.

Enhanced - A minor change for upgrading the software.

Fixed - A unique network issue has been resolved. Previoulsy a system Error (87) 'The parameter is incorrect.' could be displayed to the user when creating the backup or restore tree in the user interface. This could be caused if a network computer did not provide a domain or workgroup name (blank name). If this condition occurs now, then the network computer or network object is not to be considered as part of any workgroup/domain and will be ignored for displaying in the network list of workgroups/domains.
Fixed - 'Incremental by Timestamp' backups to 'Iomega' network attached drives would sometimes re-copy files that did not need to be copied. This was caused by not detecting the correct non-Windows file system for Iomega devices. This has been corrected.
Fixed - ACLs were attempted to be copied from a networked Windows NTFS file system PC to a networked Windows NTFS PC folder and in this specific case would produce the error 'unable to set end of file' or 'couldn't set target file time; and the target file would be corrupt.  This has been corrected.

Fixed - Source directories defined in a backup profile that did not exist on disk could result in a target folder being created. This is now prevented.

Enhanced - One of the requirements of applications running on Windows Server 2012 is to have the capability to run without the Server Graphical Shell. Double Image 7.1 has the ability to run with or without a user interface and from command lines on Windows desktops and servers. This feature is supplied with all releases of Double Image -- see the user documentation for details.
Enhanced - This release is capable of copying selected folders and files from restore points to produce single or multiple drive images.

The source restore points are those you see in Windows 'Previous Versions' when viewing the properties of a drive. The restore points can be copied to a target location by first having Double Image insert an <Admin Share drive> to represent each logical drive to be referenced; then having Double Image insert one or more <Previous Version> folders under the <Admin Share drive drive>.

The following example shows C and D drive images in the Double Image source tree. The D drive shows that it will have 2 unique restore point images backed up. The admin share drive letters (c$, d$) are not selected and are needed only to represent logical drive relationships to restore point folders.
Network
  Server25
  [ ] C$
     [x] @GMT-2016.12.15-21.00.41
     [ ] folders..
       [ ] files..
   [ ] D$
     [x] @GMT-2016.12.15-21.00.41
     [ ] folders..
       [ ] files..
     [x] @GMT-2016.11.27-08.12.16
     [ ] folders..
       [ ] files..

The restore point folder names are in Greenwich Time (GMT) with a <year>-<month>-<day>-<hours>-<minutes>-<seconds> timestamp.

Using GMT time allows for multiple machine backups in multiple time zones with multiple drives with multiple restore points, thereby keeping the target names unique in all cases.

Format:  @GMT-yyyy-mm-dd-hh-mm-ss
Example:@GMT-2016.12.15-21.00.41

Selection of folders, files including de-selecting folders, files works the the same with restore point folders as is applied to standard drive, folder, file locations.

Each restore point folder represents a unique point-in-time snapshot of an existing drive on the network computer.  Backing up multiple restore points for a single drive will also work. For example, you could have drives C: and D: on your machine that have restore points created for them once a day and each Friday you have Double Image copy five unique restore point folders that represent each work day backup for drive C: as well as 5 restore point backups for drive D:.

For now the user needs to manually insert the admin share folder and restore point folder name under the computer being backed up. Right-mouse click in backup tree view on a network computer and then also the share to see these feature options.

Remember To:
Select the 'Copy Options' | 'Registry Options' and one of the registry backup indicators, even though the registry is also part of the system drive image backup.

When copying more than one drive in a single backup session select  'File Name Option' | 'Use absolute file names when copying'. This will avoid possible duplicate target root names.

Windows 8 does not support the ability to browse, search or restore previous versions of files through 'Previous Versions' UI.
This release of Double Image is the first release with the capability to copy and backup restore point images or parts of.  A forthcoming Double Image release will also permit the same using a UI and more automated method for doing image backups and will also include support for Windows 8.

Enhanced - When re-opening a profile (.bu) the column view settings are remembered from last use, including split screens that show both backup and restore trees.
Enhanced - While copying over a network, buffering is now in place provided that the drives are a file system of Windows NTFS,  Fat32  or Fat32. Previously this was not invoked due to possible error conditions or a collision with Windows buffering. This should provide a better thru-put.
Enhanced - When copying over a network and both the source and target have a file system of Windows NTFS (also applies to USB drives including Flash Drives with NTFS), then the security descriptors will also be copied. Previously, security descriptors were only copied on the local machine. Therefore, a restore over a network to-from another Windows machine will also replace the security attributes.
Enhanced - Copy speed should be faster in this release. The spanning phase still needs improvement.
Documentation - The Index attribute will now  show in the user interface tree.
Enhanced - Under Network you can now see Workgroups and Domains. You can also right-mouse and insert a new Domain or Workgroup, to which you could insert a new computer, share, and so on. This you can do if Windows or the network browser has not picked up a non-primary Workgroup or Domain. From a Workgroup Computer you can login as Admin or take it further to a Share and login for accessing the Share data.  The login principles are the same as that of Windows connections allowing you login to a remote computer by entering a user/password. You have the option to 'remember' the login credentials or not.
Note, Double Image itself does not remember login credentials. It is the Windows networking that does this part -- remembering credentials allows you to run scheduled unattended backups without needing to re-login for each backup event.
Fixed - Buffering of IO for CD and DVD discs now occurs. Incremental backups by timestamp will work for the UDF file systems they use. Therefore you can copy between differing file systems from different devices and computers; to name a few:  UDF 2.x, UDF 1.x, FAT32, Windows NTFS, Linux NTFS, modified Network Storage devices (running Windows or Linux) and other file systems.
Fixed - When copying a sparse over a network it was possible to see a file mismatch between source and target with a status of 'sizes differ'. This has been corrected.
Fixed - A new error message now shows when attempting to create a new folder and a file exists on the target with the same name as the folder. Code was added to deal with this condition giving the user a chance to correct and continue.
Fixed - Copy Options - 'Compress (all) files as they are copied' was not working if the source was EFS encrypted.
Fixed - Network shares for one computer would also show under another.
Fixed - A bug that could have caused the main interface screen to freeze at the end of a backup session.
Fixed - Copy Options - 'Compress files as they are copied' and  'Decompress files as they are copied' would previously cause an entry in the log showing that files could not compress or decompress when copying to a device that did not have a Windows NTFS file system.  This includes devices and network storage units running under Linux, even though these device may show NTFS(non-Windows) as a file system.
Fixed - The log was sometimes being written with error messages related to encryption that were misleading or inaccurate.
Fixed - Attribute comparisons between source and target files were sometimes causing files to be copied instead of just having the attributes updated. Also during a 'Verify process' warning log notations were sometimes made unnecessarily for non-Windows target drives. These problems are now corrected.
Fixed - A crash could occur when using the View menu to 'Show Only Checked' when one or more files in sub-directories was checked for 'don't copy' with a red circle icon.
Fixed - When right-mouse clicking on a drive, folder or network computer and inserting a folder, or file, it was possible to type the new object name, but not complete it and then click the check-box for selection. This would cause the next higher folder to be checked instead.
Fixed - It was possible that a Run Error could occur after ending a backup. This is now fixed.
Fixed - When using the user interface (GUI) and the user attempts to expand a remote computer to show shares and the remote computer does not allow access or does not offer shares, then a message was presented to the user describing that network access is denied to the specific computer.
Fixed - Inserting a Network Computer or Network Share did not always produce the correct results; and could potentially cause a crash.

Fixed - In the evaluation release, the evaluation time-out reminder popup could continue to occur each day, even after the evaluation expiration date occurred.
Fixed - A bug that could sometimes cause Double Image to crash at end of job on Windows XP systems. This condition may not have showed on Window 7 and Vista systems.
Changed - Rather than showing the entire <path the the profile> in the copy engine dialog window title, only the file name will be shown.  Previously the profile file name could be truncated due to a long path name.
Documentation - Link to the ecommerce store for purchasing Double Image would return a web page: "The security certificate presented by this website was issued for a different website's address." The link in the Double Image Help did not have 'https://' but instead had "http://". 

New - Release 7.0.28 was code signed with a new code sign certificate. This is the only difference between build 7.0.27 and 7.0.28

Fixed - When the log window was opened and all windows subsequently closed it was possible for the process to still remain showing as running in the Windows Task Manager.  Under rare conditions the main window could show, and require an 'end task' by the user.  This is now fixed.
Fixed - Application hang could occur when the option 'File Name Options' was set to 'User Relative file names when copying' and the source folder was an immediate sub folder of the target folder.  This is now fixed.
Fixed - in some cases, copying incremental by time-stamp and copying between a Windows controlled drive and a Linux network share (or non-Windows NAS device) files could sometimes be copied that did not need to be copied. No data problems were caused by this condition. This has been fixed.

Enhanced - Network computer properties added - view the properties of a Windows networked computer.  The property output will include the platform, operating system, domain or group name and number of logged on users.  This little feature does not yet show for non-Windows networked computers.
Enhanced - For the purpose of larger domains, the network tree will show domains from which the user can select computer shares for backup. The network tree is then populated only with the selected share, folders and files and show directly under 'Network' and not under a <workgroup> or <domain>.Therefore when a Double Image profile is run routinely, the entire list of domains and there computers do not need to be enumerated, again, on the user's machine.
This saves initiation time and scheduled backups can start quickly; also when viewing the profile UI, you don't have to wait too long for the hour-glass to go away. When the user wants to review the entire network they can click the {F5} function key to refresh the network tree and view the complete list of domain systems and computers.
Click {Ctrl}{F5} to refresh the network tree and also include computers that were not viewable due to previous errors that dropped them from the network list (temporarily omitted in most cases due to power off, no connection...).
Enhanced - Windows EFS Encrypted files will not be copied to any drive other than Windows NTFS volumes using Windows EFS encryption.

• If copying from a Windows NTFS volume to a non-Windows volume (i.e., Linux) and the source is encrypted, the copy session cannot continue since the target cannot be encrypted as the source is.
• If the source is from a non-Windows volume (i.e., Linux) and the target is a Windows NTFS volume and the target is encrypted, the target cannot be decrypted as the source is and the copy session closes incomplete.

New - Copying  using the 'Incremental by Timestamp'
Testing was performed  on

1. SME Linux Server shares
   
2. Western Digital 'My Book' World Edition NAS appliance
   

Both the above network devices function using a flavor of the Linux operating system with the NAS appliances using a scaled down version. In any case, between these two example devices it should be found that most 'over the counter' NAS appliances and the variety of Linux operating systems should work well as backup mediums for Double Image. Tests were performed for backup, restore, compare, verify and deletion of orphan files -- testing was done on Windows 7 Enterprise x64 and XP Pro systems.
Previously, the attribute differences between Windows and NAS devices and Linux servers did not agree causing re-copying of files (or at least the attributes) when the file content was actually the same on source and target.
New - 'Incremental by Timestamp' backup and restores will now work with removable media to include UDF file formats. The UDF file system (several versions) is largely related to DVD, CD disc read-write devices. Using Windows Vista or Windows 7 you can 'format', 'backup to', do secondary incremental backups.....
Also, eject following a backup will close the session (unless the default setting for close is changed for the device).
Previously following the first copy to a DVD disc or CD disc using the default and common UDF file system, a full copy would occur again. Now only the changed or new file/s will be copied. Testing was completed on Windows 7.
Flash drives may also be used with multiple file systems including Linux share content and Windows content using FAT32, exFAT or NTFS as the file systems.
New - A new Help topic "Attributes" with detail descriptions was added and includes several new attributes that arrived with Windows Vista and Windows 7.  Attributes are displayed inthe backup and restore tree, with all related to the folder or file.  Previously Index, Directory, Device and several others did not show.
New - The not so old 'exFAT' file system is assigned as a Double Image valid system to be recognized.  Wikipedia has a good explanation of 'exFAT' file system at http://en.wikipedia.org/wiki/ExFAT
New - Limited some types of <Symbolic Links> from being copied during backup or restore. Links like shortcuts are still copied.  Read more details in Help topic 'Attributes' and definition of the 'Reparse Point' attribute.  Why the limitation? Note that "C:\users\All Users\" folder reflects to "C:\ProgramData\" folder by having a junction point or Link.  Double Image refrains from copying both sources and therefore prevents restoring both sources. It is the actual data that is copied from the folder that is not the junction point.
Changed - Network Views. In the Backup Files tree on a new profile, the Network will show the 'Domains' or Workgroups.  It is up the user to select the Network computers to backup from or restore to. The change is that once the selections are completed from the domain list, then the selected Network Computers are shown directly under the global Network.  You can also right-mouse click, add a non-existing network share name to a network computer, select the new share name and see it in the selection list under the global network.
This change makes it such that the domain lists do not need to be refreshed each time the selected tree is re-shown and it should save refresh time. Therefore, once a profile is established, you should only see the selected network computers and only the domain names. If you need to add and select a non-selected server, network computer to the group/domain, then you can click the default Refresh {F5} key and the domains should also be refreshed. Double Image keeps track of those connections that had failures and when those need a refresh you can click the {CTRL}{F5} keys.
Changed - A new Help topic was added to Help 'Windows Task Scheduler Help'. The help topic is for the API used by Double Image to allow users to create Windows Task Scheduler (WTS) entries for the version of Windows you are running, but retaining the UI look that you would see in Windows XP.  When a user creates a scheduled entry, via Double Image, the entry is created in the actual Windows Task Scheduler task list of the operating system you are using;  and as you may know the presentation of the WTS has changed considerably from XP to Windows 7.  With the later release of the WTS in Windows Vista and Windows 7, you can create additional events to occur before or after a scheduled task.  With Double Image you may wish to perform another task or send an email before or after the backup session is complete.
Changed - The UI of the main window's copy options pane is now larger allowing for easier reading and selecting options.  The sizing should cover all display resolutions starting with 800x600.
Changed - Restore mode default compression setting - the default compression option for the Restore Mode is 'ignore'.  This differs from the default Backup mode default which is to clone the compression from the source to the target; therefore is the source is compressed, then the target is compressed and conversely if the source is not compressed and the target is compressed, the target will be de-compressed.
The Restore mode compression default 'ignore' will ignore the compression settings on the source and ignore the compression settings on the target.

Example of compression Restore mode option default set to 'ignore' (the bottom radio button under 'Copy options', 'Compression'):

If the original backup was from a Windows NTFS compressed folder to a FAT32 folder, the FAT32 folder would not have its compression attributes set (because FAT32 can't handle Windows compression). Later when a Restore is done using the FAT32 folder to recover from, those files that may still remain in the NTFS folder will remain compressed even if the date-time, file sizes or other attributes differ.

Fixed - Incremental backups to-from network NAS devices still did not have the timestamp resolved completely; therefore causing some files to copy when they did not require a copy.
Fixed - 'Select Files by Date' copying. Along with the fix, you may now also apply 'Exclude wildcards' together with the 'Select Files by Date'.  Example, you could copy only files from 11/30/2010 through 12/03/2010 and exclude all files with an extension of *.exe, *.txt, and so forth.
Fixed - Exclude Files by Wildcard.
Fixed - Changed code that was causing abnormal log error messages, particularly on network backups; this fix also speeded network enumeration at start of job and during tree refresh.
Fixed - An entire network computer can no longer be checked in the backup tree. The shares, folders and files under the network computer can be selected or not selected by the user, just like 'Computer' where drives would be on the same level as network computer shares.
Fixed - Tuning was done for Linux timestamp comparisons, again and other NAS appliance devices that have less file attributes than Linux. This will hopefully make the 'incremental by timestamp' copies more accurate. Tests performed with Double Image and a Linux server showed improvement with very many files being copied. Let's see how this works with others who use combined Linux and Windows machines on the same network.
Fixed - The Network icon expands as expected. In prior releases, clicking the Network icon might not always expand the network tree due to a network error.
Fixed - A program fault previously could occur during shut-down of Double Image or its documents. This should now be fixed.
Fixed - A program fault could occur after closing the main UI window. This condition normally occurred when the network tree had been expanded, prior to closing the user interface.
Fixed - Previously if a router or other network devices provided enumeration details indicating the device was a group, server or workstation, the device could be shown in the network tree. Double Image 7.0 now validates the device to ensure that fancy printers and routers do not show in the backup tree (these devices would only have shown previously if the device indicated that it has a storage disk medium). Some routers do extend their workgroup name and computer name, indicating to be a server for the Windows Network.
Fixed - Error messages show correctly for target files that cannot be compressed or encrypted when the target device does not support Windows compression or Windows EFS encryption. Compressed files will be decompressed and copied and a warning log entry is created; encrypted files will not be copied and an error log entry is created when the target device does not support Windows compression or Windows EFS encryption.
Fixed - Some folders were not fully copied, based on not providing correct security to windows in some cases. A program fault could occur as a result of this condition.
Fixed - 'Date modified' and 'Date created' now show correctly for both directories and files (you need to open Explorer to see a 'Date created' column).
Fixed - Several program fault conditions were resolved.
Fixed - When copying files from a network computer to Windows, not all files in a root folder would copy. The sub-folders would copy okay.
Fixed - 'Minor Delete' problem
Fixed - When both the source and target root folders have the same name, not all files may copy.

Fixed - Using the Search tab in the Help viewer will no longer cause an application fault. Previously, 'search' in {F1} Help could cause an application fault, and the program needed to terminate. This is now fixed.
Fixed - Using {F1} Help in the Scheduler window referred to a non-existing topic. {F1} Help now works in the 'Scheduler' UI.
Fixed - Using the Search tab in the Help viewer will no longer cause an application fault. Previously, 'search' in {F1} Help would cause an application fault, and the program needed to terminate. This is now fixed.
Fixed - File Include and Exclude wildcards. An example of using this feature would be to copy all *.doc files on "C:\" to"d:/wordStuff". In addition, if you did not choose to copy with 'File Name Option, Absolute...' then any duplicates would be overridden on the target folder: "d:\wordstuff\ *.doc"
Fixed - Previously, when a drive or network path could not be found at startup, an error message would show to the screen, even if the backup profile was opened by the scheduler, or was minimized. Unattended backups would stop (scheduled) and if 'Minimized' the error could not be dealt with and an 'End Task' would be needed. This is fixed.
Fixed - Some NAS drives always requiring a Full Copy  When Double Image recognizes a file system that is not a Windows controlled device, then time tolerances in milliseconds or seconds are adjusted for the particular type of device.  In most cases the device is a Network Attached Storage (NAS) device with Linux under the hood.  Previously, some NAS devices were having an incorrect time tolerance calculated and as a result when the user selected an 'Incremental' copy, a Full copy would still result.
Fixed - View menu - 'Show Only Checked Items' and  'Show Checked and Unchecked Items' Previously 'Show Only Checked Items' did not toggle properly with 'Show Checked and Unchecked Items'. While viewing the Explorer like tree, you can click to toggle these settings or select from the 'View' menu.
Fixed - Show network icons within Workgroup or Domain.  Previously the icons for computer names would only show under the Network icon and under the Workgroup or Domain names.
Fixed - Error condition while copying base files from a network share. The error occurred while in the scanning phase showing: "While getting directory information this directory could not be accessed. Reason (267): The directory name is invalid."
\\MyComputer\ShareName\file.txt
Information - When the user interface is Maximized, the columns, like Size, Status, and more& can be dragged and moved left, right or down/up->off the screen.
If the UI not Maximized, the columns cannot be moved. An example might be to drag the Attribute column next to the folders and files to easily see the column pair; Or drag another column off the screen that is not needed for viewing. The column settings are retained when profiles are closed and re-opened.
Information - The Windows shell and Windows Explorer user interface do not permit files or directory names to end with a space or a period, although it appears that the underlying file systems support such names. If a directory or file is named as such, then you cannot see (or rename) the file by using Windows Explorer.

'Double Image 7.1' will create log entry errors during the backup to document these kind of files. The incorrect named files will not be copied to the target. I have seen this condition created when using a Firefox browser that allows you to name bookmark properties of a favorite link that ends in a space or period. The property names also become the name of a disk file. As a result Windows Explorer will not show these files, even when you choose to view system, hidden files, because they have been named with a period or space at the end of the file name. If you notice these kinds of files in the Double Image log, then it is up to you to retain them or rename them by using a command window and include the path in quotes.

Example:

Information - You are able to rely on the Windows Task Scheduler via Double Image without having a Windows logon password, provided that the scheduled job runs while you are logged on with the user account that created the scheduled task. The account must have Administrator rights.

Click the 'task tab'
Select 'Run only if logged on'
Complete the 'Schedule', and 'Settings', and OK.