Int 2F Fn 9400  - Micro.exe - Installation Check                           [e]

   AX = 9400h

Return: AL = 07h or 08h if installed
Program: MICRO.EXE is a TSR of the Microsoft Mail part of Workgroup Connection

See Also: AX=9401h,AX=9402h,AX=9403h,AX=9404h,INT 21/AH=3Fh"WORKGRP.SYS"