INT 21 - Novell NetWare - PRINT SERVICES - START SPECIFIC LPT CAPTURE
        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
SeeAlso: AH=DFh/DL=00h,AH=DFh/DL=05h,AH=DFh/DL=06h,AH=DFh/DL=07h