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

	AH = 09h
	BX = 8020h (synchronous request)
	CX = 0000h
	DX = ID of session manager (SESSMGR)
	AL = service (see <a href=../../it/34/38.html>#03834</a>)
	ES:DI -&gt; control block
Return: ???

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