server 2003 with sql 2000 error 0x800423f4

Hi, we have a server 2003 x64 machine with sql2000 on.

When I try and do a backup with VSS I get the “MSDEWriter has reported an error 0x800423f4” error message.

I have set the sql service and the sql agent service to run as domain\sqlsvc and I have reregistered the sqlvdi.dll ( cd C:\Program Files\Microsoft SQL Server\80\COM
regsvr32 sqlvdi.dll ) but I still keep getting the error message.

The server is up to date with all the MS patches.

I would like to try the hotfix at http://support.microsoft.com/kb/828481/en-us but they say you must backup your machine before running the hotfix. If I could backup my machine I wouldn’t need it now would I??

Does anyone know another way to fix that error?