After the unatended NT-WS installation I would install the SMS-Client with the SMS-Batch "runsms.bat".
But after the Batch the user must do anything, for instance:
* click OK in the Paket-Installations-Manager's "Welcome screen"
* fill up the MIF-File (uinfo.xnf) an save it up
* close the Programm-Group "......\SMS-Client"