Category: <b>TSR libraries</b>
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<pre><b>INT 14 - I1541 - INSTALLATION CHECK</b>

	AX = 4000h
Return: AX = 1541h if installed
	    BH = I1541 major version (BCD)
	    BL = I1541 minor version (BCD)
	    CX = 0000h
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