Category: DESQview/TopView and Quarterdeck programs

INT 15 - DESQview v2.00+ - ENABLE DESQview EXTENSIONS

	AX = DE0Fh
Return: AX and BX destroyed (seems to be bug, weren't saved&restored)
Notes:	sends a manager stream with opcodes AEh, BDh, and BFh to task's window
	enables an additional mouse mode