Malcolm Campbell wrote in a message to All:
 MC> What I would like to do, but don't know how, is to determine
 MC> at login time which OS the client is running, and force a
 MC> virus scan with the appropriate scanner i.e.
 MC> Thunderbyte for DOS and Win 3.1x
 MC> Thunderbyte for Win95
 MC> Thunderbyte for WinNT
 MC> Can anyone tell me, from within the login script, how to
 MC> determine which DOS or Windows the client is running?
For NW 3.12, You can use the predefined symbols "%OS" and "%OS_VERSION" in 
your login scripts:
IF "%OS" = "MSDOS" THEN #VC_DOS.BAT
IF "%OS" = "WIN95" THEN #VC_W95.BAT
And so forth.
 MC> Any help would be gratefully appreciated!
This is well documented in the manuals with regard to login scripts.
 
-- Mike
--- 
---------------