6865: Acronis Recovery for Microsoft Exchange: Incremental Backup of Information Store Freezes at 100%

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Operating Systems: 

Last update: 14-06-2011

Replace the StructuredBackup.dll library with the one that has the fix to solve the issue

This article applies to:


  1. Using Acronis Recovery for Microsoft Exchange, you create a full backup of an information store;
  2. Then you run an incremental backup of the information store;
  3. The incremental backup task hangs at 100% and never succeeds;
  4. When you go to Task Manager on the Microsoft Exchange Server machine, you can see that the TaskService.exe process is consuming 0% of CPU.

    The issue appears mostly when backup is saved to network.


This is a known issue with the product that has already been fixed.


  1. On the Microsoft Exchange Server machine invoke the Services window (Start-Run -> services.msc) and stop all Acronis services;
  2. Then invoke Windows Task Manager (Ctrl-Shift-Esc) and end the following processes:
    • TaskService.exe
    • agent.exe
    • AcronisProgressServer.exe
  3. Browse to the following folder:

    Windows 32 bit: \Program Files\Common Files\Acronis\DatabaseBackup\Fomatik\
    Windows 64 bit: \Program Files (x86)\Common Files\Acronis\DatabaseBackup\Fomatik\

    and rename the StructuredBackup.dll file to StructuredBackup.dll.old;

  4. Download structuredbackup.zip and unpack it to same folder where you renamed the file;
  5. Invoke the Services window (Start-Run -> services.msc) and restart all Acronis services;
  6. Recreate the full backup and check if the issue remains for the incremental tasks.

More information

The downloaded StructuredBackup.dll library includes a fix for correct end-of-file placement and the task should not hang at 100% anymore.