MS-SQL backup fails - Error in CoCreateInstance: 0x80040154

[Will_Restore]

SQL Server 2005; Windows 2008 Server; NetBackup 7.1.0.4

Backup using SQL Studio works fine.   OS backup using NetBackup also works. 

Backup using NetBackup MS-SQL agent fails immediately with

Error in CoCreateInstance: 0x80040154

An attempt was made to reference a token that does not exist

Working with our Windows admin (I'm more versed in unix) but not much traction on this problem. 

Search on this forum and others has not turned up much help either. 

[CRZ · Accepted solution]

I think this is a Microsoft issue.  It sounds exactly like this Windows 2003 issue:

GENERAL ERROR: Attempts to back up 32-bit SQL on a 64-bit Windows server fail with a CoCreateInstance error message in the dbclient log file.
 http://symantec.com/docs/TECH48096

I poked around the Microsoft KB and couldn't find an equivalent for Windows 2008, though....this was as close as I got, but it's for Windows 2003 and SQL 2000:

FIX: Event ID 20 "Volume Shadow Copy Service error" is logged when you back up the System State on a Windows Server 2003 x64 Edition-based computer that is running SQL Server 2000
 http://support.microsoft.com/kb/904418

Both docs mention some sort of 32-bit vs. 64-bit conflict, however, so maybe that can push you in the right direction.  Maybe you/someone else here will have better luck?

[Will_Restore]

Thanks!  Turns out SQL Server was missing proper sqlvdi.dll