is there a registry key where we can determine the exact Windows version
(like Windows 2000 Professional, Windows 2000 Server, Windows XP Home,
Windows XP Professional etc.)

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProductName
is not enough, because there is no difference between W2K Pro. and W2K
Server etc.

We need this because after importing our workstations and servers to the
default OU, we will run an zen application which should ask for an registry
key with the exact Windows version and then reimport the machine in
different OUs.

Please help...