Windows 7 - Problem backing up 2008R2 system state with DPM 2010

I am having a problem backing up a 2008R2 system state with DPM 2010.  I
created the registry key/entry indicated in KB944530, rebooted, and the
system state backup still fails in DPM. The error I get in the App Log of the
server being protected is..
Event ID 546
The backup operation attempted at '???2010???-???01???-???06T17:07:41.711891500Z' has
failed to start, error code '2155413599' (%%2155413599). Please review the
event details for a solution, and then rerun the backup operation once the
issue is resolved.

Performing a system state backup LOCALLY on the 2008R2 server works fine
using this command....
wbadmin start systemstatebackup -backuptarget:C:

Any help would be much appreciated, thanks.

All my system state backups for Win2k8r2 servers is failing to with DPM 2007
SP1 + latest hotfix

Not sure if its the same error though, just found it interesting that R2
instroduced a bigger or number of issues with system state

Hi,
Can you please check the backupTarget being used by DPM, by looking at
C:\Program Files\Microsoft Data Protection
Manager\DPM\Datasources\PSDataSourceConfig.xml on the protected server.
Check for <FilesToProtect> element, and use the drive mentioned there while
manually creating the system state backup, and see if you are hitting the
same issue.

--
Thanks
Narendran
This posting is provided as is and confers no rights.

The xml entry reads:

There is no D: drive on this server being protected.  I ran the local
sysstate backup using D: and it failed the same way.  So that is the problem..
How do I change that entry to read C:\WindowsImageBackup instead of D: ?

Thanks,
Jack

I opened the XML file in Notepad and changed the D to C and am running a
system state backup from DPM-- will post result...

Changing the .xml entry to point to C: instead of D: fixed the issue.  System
State backup from DPM now works. Thanks very much.