Terminal Server Client Creator

hello:
hope anyone can help me. i’ve been working with terminal server for a while and as i understand it, you should create a terminal server client’s disk as well as ICA clients.
My problem is this:
i im runing WinNT Terminal Server 4.0 and Metaframe 1.8 (SP6)
I wish to create DOS clients, but in Terminal Server Client Creator, or Network Client Administrator i never get the DOS Client choice.
Is there something that i would have to tweek like registry or .inf or .ini files?
Microsoft dont support DOS anymore, so i cant find much help in their knowledge base.
Please Help! ^_^