Int 1A Fn 6E01  - Snap.exe 3.2+ - "snap_setdebug" - Set ???                [N]

   AX = 6E01h
   STACK:  WORD    new value for ???

Return: AX = old value of ???
   STACK unchanged
Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University
     which implements the Simple Network Application Protocol