Hi Sumit,
Have you tried backnig up using NTbackup?
Are you just backing up the Shadow Copy Component
You will need to install a hotfix for this and this hotfix is only provided by Microsoft as VSS is a Microsoft product.
http://support.microsoft.com/default.aspx?scid=kb;en-us;826751
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Please update and apply this patch.
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