Function 0DEh   DesQview Services                             (DesQview) 
entry   AH      0DEh 
	AL      00h     Get Program Name 
			return  AX      offset into DESQVIEW.DVO of current 
			                program's record: 
			                byte    length of name 
			                n bytes name 
			                2 bytes keys to invoke program (second 
			                        = 00h if only one key used) 
			                word    ? (I see 0 always) 
			                byte    end flag: 00h for all but last 
			                        entry, which is 0FFh 
		01h     Update "Open Window" Menu 
			return  none 
			note    Reads DESQVIEW.DVO, disables Open menu if file 
			        not in current directory 
		02h     unimplemented in DV 2.0x 
			return  nothing (NOP in DV 2.0x) 
		03h     unimplemented in DV 2.0x 
			return  nothing (NOP in DV 2.0x) 
		04h     Get Available Common Memory 
			return  BX      bytes of common memory available 
			        CX      largest block available 
			        DX      total common memory in bytes 
		05h     Get Available Conventional Memory 
			return  BX      K of memory available 
			        CX      largest block available 
			        DX      total conventional memory in K 
		06h     Get Available Expanded Memory 
			return  BX      K of expanded memory available 
			        CX      largest block available 
			        DX      total expanded memory in K 
		07h     APPNUM  Get Current Program's Number 
			return  AX      number of program as it appears on the 
			                "Switch Windows" menu 
		08h     GET (unknown) 
			return  AX      0       unknown 
			                1       unknown 
		09h     unimplemented in DV 2.00 
			return  nothing (NOP in DV 2.00) 
		0Ah     DBGPOKE Display Character on Status Line 
			BL      character 
			return  character displayed, next call will display in 
			        next position (which wraps back to the start of 
			        the line if off the right edge of screen) 
			note 1) Displays character on bottom line of *physical* 
			        screen, regardless of current size of window 
			        (even entirely hidden) 
			     2) Does not know about graphics display modes, 
			        just pokes the characters into display memory 
		0Bh     APILEVEL Define Minimum API Level Required 
			BL      API level 
			        2 pops up "You need a newer version" error 
			        window in DV 2.00 
			BH      unknown 
			return  AX      maximum API level? 
		0Ch     GETMEM  Allocate "System" Memory 
			BX      number of bytes 
			return  ES:DI   pointer to allocated block 
		0Dh     PUTMEM  Deallocate "System" Memory 
			ES:DI   pointer to previously allocated block 
			return  nothing 
		0Eh     Find Mailbox by Name    (DV 2.0+) 
			ES:DI   pointer to name to find 
			CX      length of name 
			return  BX      0       not found 
			                1       found 
			        DS:SI   object handle 
		0Fh     Enable DesQview Extensions      (DV 2.0+) 
			return  AX and BX destroyed (seems to be bug, weren't 
			        saved & restored) 
			note 1) Sends a manager stream with opcodes AEh, BDh, 
			        and BFh to task's window 
			     2) Enables an additional mouse mode 
		10h     PUSHKEY  PUT KEY INTO KEYBOARD INPUT STREAM  (DV 2.0+) 
			BH      scan code 
			BL      character 
			return  BX      unknown (sometimes, but not always, 
			                same as BX passed in) 
			note    A later read will get the keystroke as if it 
			        had been typed by the user 
		11h     ENABLE/DISABLE AUTO JUSTIFICATION OF WINDOW (DV 2.0+) 
			BL      0       viewport will not move automatically 
			        nonzero viewport will move to keep cursor 
			                visible 
			return  none 
		12h     unknown (DV 2.0+) 
			BX      0       clear something? 
			        nonzero set something? 
			return  none