INT 17 - Alloy NTNX, MW386 - CANCEL JOBS FOR CURRENT USER
        AH = 81h
        AL = 00h (NTNX compatibility mode)
        CL = number of jobs to cancel
Return: AL = status
            00h success
            01h..7Fh warning
            80h general failure
            81h host overloaded (NTNX only)
            82h module busy (NTNX only)
            83h host busy (NTNX only)
            84h re-entry flag set
            85h invalid request
            86h invalid printer
            87h invalid process ID
            89h access denied
            8Ah option not available for given port type
            8Bh option not available for given task type
            91h printer busy
            C2h file not found
            C3h path not found
            C4h file access failure
Note:   cancels the last CL printouts for the current task