This update is listed as a prerequisite on Windows 2008 X64 Server to install SnapDrive 6.1.
The KB article seems to be realted to a problem with the Windows 2008 Hyper-V VSS Writer.
I am installing on a ESX virtual server. Do I still need to install this?
Any idea of how to get it installed if it is required?
The installer reports that this update doesn't apply to your system when I attempt to install it.