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X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 2a - microsoft networks - begin dos critical section http://www.X-Hacker.org [<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide] 
INT 2A - Microsoft Networks - BEGIN DOS CRITICAL SECTION
        AH = 80h
        AL = critical section number (00h-0Fh)
            01h DOS kernel, SHARE.EXE
                apparently for maintaining the integrity of DOS/SHARE/NET
                  data structures
            02h DOS kernel
                ensures that no multitasking occurs while DOS is calling an
                  installable device driver
            05h DOS 4+ IFSFUNC
            06h DOS 4+ IFSFUNC
            08h ASSIGN.COM
Notes:  normally hooked to avoid interrupting a critical section, rather than
          called
        the handler should ensure that none of the critical sections are
          reentered, usually by suspending a task which attempts to reenter
          an active critical section
SeeAlso: AH=81h, AH=82h, AH=87h, INT 21/AX=5D06h,5D0Bh
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