Failed to start quiescing operation in the virtual machine.

The error msg:
Failed to start quiescing operation in the virtual machine.

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1018194

Solution:
To re-install VMware tool and un-check "SyncDriver" for Windows 2000 virtual machine only.