Hi

Using BEX 12.5 on SBS 2003 SP2

Every now and then my backups fails with errors like :

Directory WINDOWS\ was not found, or could not be accessed.
None of the files or subdirectories contained within will be backed up.
Directory C:\WINDOWS was not found, or could not be accessed.
None of the files or subdirectories contained within will be backed up.

Obviously this directory is present and functioning properly.
In the same job it skips some files that was corrupt. AT the end of the job log the following exceptions is noted:

Backup- C: WARNING: "C:\Program Files\Microsoft Windows Small Business Server\Networking\POP3\Failed Mail\{A2C90A64-6D57-4447-B67E-43231DEA12B7}.1.2.3.eml" is a corrupt file.
This file cannot verify.
WARNING: "C:\Program Files\Microsoft Windows Small Business Server\Networking\POP3\Failed Mail\{A2C948BB-6E4F-40A8-A789-E23C3406CBBB}.1.2.3.eml" is a corrupt file.
This file cannot verify.
V-79-57344-34108 - An unexpected error occurred when cleaning up snapshot volumes. Confirm that all snapped volumes are correctly resynchronized with the original volumes.

At the end of the set I get the following error:

An unexpected error occurred when cleaning up snapshot volumes. Confirm that all snapped volumes are correctly resynchronized with the original volumes.

In the Event log the following error is logged:

Event Type: Error
Event Source: VolSnap
Event Category: None
Event ID: 25
Date: 7/30/2009
Time: 11:23:36 PM
User: N/A
Computer: XXX
Description:
The shadow copies of volume C: were deleted because the shadow copy storage could not grow in time. Consider reducing the IO load on the system or choose a shadow copy storage volume that is not being shadow copied.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

I have tried installing http://support.microsoft.com/kb/833167, but can't as SP2 is installed. I have updated the VSS with http://support.microsoft.com/kb/833167 but still the problem remains.

Could it be because the corrupt mails could not be backed up the volume shadow copy had an error resulting in the windows directory no being backed up?