2F9400 INT 2F - MICRO.EXE - INSTALLATION CHECK 2F9401 INT 2F - MICRO.EXE - SET ??? FLAG 2F9402 INT 2F - MICRO.EXE - ??? 2F9403 INT 2F - MICRO.EXE - SET ??? FLAG 2F9404 INT 2F - MICRO.EXE - CLEAR ??? FLAG