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