Well here's the registry keys for Win9x clients(not sure what you have)
code:
HKEY_LOCAL_MACHINE\Network\Logon\ProcessLoginScript
Value = 00 to not process Novell scripts
HKEY_LOCAL_MACHINE\Network\Logon\PrimaryProvider
Value = "NetWare" or "Microsoft Network"

Not sure if that's what you wanted. Hope it helps.