INT 2F - Communicating Applications Specification - FIND NEXT QUEUE ENTRY
        AX = CB06h
        DL = queue to search
            00h task queue
            01h receive queue
            02h log queue
Return: AX = 0000h successful
            BX = event handle for found event
           < 0     error code (see AX=CB01h)
Note:   direction of search is same as preceding FIND FIRST call