Int 21 Fn DF  - Novell Netware - Print Services - Start Specific Lpt Capt  [N]

   AH = DFh
   DL = 04h
   DH = LPT port (00h-02h)

Return: AL = status
       00h successful
Desc:  this function redirects the specified LPT to a capture file on the file
     server

Notes: this function is supported by Advanced NetWare 2.1+
   a print job is queued when the first character of output is captured

See Also: AX=B800h,AH=DFh/DL=00h,AH=DFh/DL=05h,AH=DFh/DL=06h,AH=DFh/DL=07h

See Also: AX=F003h