missing mouse on vmware server or esx(i) vm with vmware tools installed

I have had this one crop up occasionally and I can’t ever remember the fix so I’m posting it here.  Basically this happens if you had a microsoft vm that you cloned, p2v’ed, imported, etc into any of the vmware products. It doesn’t matter if you uninstall the microsoft vm additions first. The fix is to delete a registry key. Link to article at vmware.