Category: <b>IBM workstation/terminal emulators</b>
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<pre><b>INT 7A - IBM 3270 Workstation Program API - COPY SERVICE</b>

	AH = 09h
	BX = 8020h
	CX = 00FFh
	DX = ID of copy service
	AL = service
	    01h copy string from one presentation space to another
	    02h copy block from one presentation space to another
	    03h connect to PC session for copy
	    04h disconnect PC session from copy
	ES:DI -&gt; control block
Return: ???
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