Various issues may occur on a Windows Server 2003-based computer that is running the Volume Shadow Copy Service

http://support.microsoft.com/kb/940032


1. Click Start, click Run, type cmd, and then click OK.
2. Type the following commands at a command prompt. Press ENTER after you type each command.
• cd /d %windir%\system32
• Net stop vss
• Net stop swprv
• regsvr32 ole32.dll
• regsvr32 oleaut32.dll
• regsvr32 vss_ps.dll
• vssvc /register
• regsvr32 /i swprv.dll
• regsvr32 /i eventcls.dll
• regsvr32 es.dll
• regsvr32 stdprov.dll
• regsvr32 vssui.dll
• regsvr32 msxml.dll
• regsvr32 msxml3.dll
• regsvr32 msxml4.dll
Note The last command may not run successfully.
3. Perform a backup operation to verify that the issue is resolved.