INT 15 U - DESQview v2.50+ - GET/SET SOCKET HANDLER                             
	AX = DE2Dh
	CX = direction
	    FFFFh set socket handler
		DX:BX -> FAR function for socket interface
			must be of the format described under INT 63"DESQview"
			  at #03515
	    other get socket handler
		Return: DX:BX -> socket handler (see #03515)
Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
	the "set" subfunction is normally called only by SOCKET.DVR
SeeAlso: AX=DE2Eh,INT 63"DESQview",#03515