Int 21 Fn 5FA2  - LANtastic - Control Queue                                [N]

   AX = 5FA2h
   BL = control command
       00h start despooling (privileged)
       01h halt despooling (privileged)
       02h halt despooling at end of job (privileged)
       03h pause despooler at end of job (privileged)
       04h print single job (privileged)
       05h restart current job (privileged)
       06h cancel the current job
       07h hold queue entry
       08h release a held queue entry
       09h make queue entry a rushed job (privileged)
   CX:DX = sequence number to control (commands 06h-09h)
   DX = physical printer number (commands 00h-05h)
       00h-02h LPT1-LPT3
       03h,04h COM1,COM2
       other   all printers
   ES:DI -> ASCIZ server name in form "\\machine"

Return: CF clear if successful
   CF set on error
       AX = error code