INT 2F CU - Novell DOS 7+ FDOS EXTENSIONS - FLUSH BUFFERS                       
	AX = 1003h
	BL = drive???
	BH = buffer type to flush (BF_ISFAT+BF_ISDIR+BF_ISDATA)
Return: nothing???
Notes:	This private function is called internally by the OS kernel to
	  ask the FDOS to flush all buffer.  By using the INT 2F/AX=1001h FDOS
	  hook, the call can be intercepted by external system components such
	  as the DELWATCH TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user.  The name comes from the name of the DOS function call used to remain in memory after termination..
	This function must under no circumstances be called by applications!
SeeAlso: INT 2F/AX=1001h,AX=1004h,AX=10FEh