NTBackup on Windows Server 2003 x64 and SQL Server 2000

Just came across this gem of a KB from Microsoft, which happens to be pretty recent as well. I had a customer with a x64 Win2k3 installation where NTBackup would just not run. It hung on Preparing the Volume Shadow Service, and never did and simply died. This KB outlines the exact issue and fixes it. Not sure if the patch is needed, but it could just be that the Registry key is needed.