Int 2F Fn 1682  - Ms Windows 3+ - End Critical Section                     [W]

   AX = 1682h

Notes: not supported in Windows/386 2.x.  Get InDOS flag with INT 21/AH=34h
     and decrement by hand, taking care not to decrement InDOS flag
     through zero

See Also: AX=1681h,INT 15/AX=101Ch,INT 21/AH=34h