VSS/Backup issues on SBS 2008

I think I have a couple of different issues going on here.

First, over the past couple of months the backups have reported in SBS 2008's console have said they have failed. Finally, after a manual backup, the backup reported normal.  But the last couple of days, the backups have failed randomly. I have searched the logs have found a couple of issues going on.
1. The VSS service is shutting down due to idle timeout.
2. Writer name: 'Microsoft Exchange Writer'
   Writer Id: {76fe1ac4-15f7-4bcd-987e-8e1acb462fb7}
   Writer Instance Id: {6440f123-4b51-4afa-ada1-b01862560229}
   State: [9] Failed
   Last error: Timed out
3. Backup started at '{59b45683-ecc2-4d92-8391-eb573ba920c0}' failed as Volume Shadow copy operation failed for backup volumes with following error code '2155348001'.
4. Backup started at '3/4/2011 10:30:31' failed as Volume Shadow copy operation failed for backup volumes with following error code '2155348001'. Please rerun backup once issue is resolved.
5. Volume Shadow Copy Service error: Unexpected error VSS_E_WRITER_STATUS_NOT_AVAILABLE. An older active writer session state is being overwritten by a newer session. The most common cause is that the number of parallel backups has exceeded the maximum supported limit.  hr = 0x80042409.

   PostSnapshot Event

   Maximum supported sessions: 64
   Completed sessions: 8
   Active sessions: 64
   Aborted sessions: 0
   Writer failed sessions: 4
   New snaphot set: {752227ec-0223-4e85-b576-214a8e7cffb1}
   Old snapshot set: {c642a64d-4c9d-4123-a898-b33b9aeea01f}
   Old operation: 1013
   Old state: 5
   Old failure: 0
   Execution Context: Writer
   Writer Class Id: {a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}
   Writer Name: SqlServerWriter
   Writer Instance Name: SQL Server 2005:SQLWriter
   Writer Instance ID: {fe675bd7-1d78-424c-8899-8b8bb365aed9}

I really like some help on this one b/c it appears there is a lot going on. Any suggestions?
Who is Participating?
Rob WilliamsConnect With a Mentor Commented:
Numerous folk have reported VSS backup issues. In many cases the solution has been to re-register the appropriate .dll's as per:
fishbowlstudiosAuthor Commented:
Any suggestions?
Glen KnightCommented:
The absolute first thing to do is to make sure the SBS server is fully up to date using Microsoft Online Updates (different from Windows Updates), see my guide here: http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Windows/Windows_7/A_3236-Get-more-from-Windows-Updates.html

Make sure you have at least Rollup 5 for SBS2008 installed which is available from Microsoft Updates.
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Try to delete the shadow copies. THere would be one stuck there somewhere from an old backup
Not sure what sort of damage this will do
But has fixed 1 client with similar issue.
They were getting the follwoing event in system event log
Event ID 55 ntfs - harddiskvolumeshadowcopy153

1. Delete all the shadow copies by executing this command:
vssadmin delete shadows /all

2. Rename the c:\System Volume Information as well as the “System Volume Information” folder in other volumes.

3. Restart the problem computer and verify if the issue persists.

WycomConnect With a Mentor Commented:
Try to get a full backup first
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