Category: <b>virus/antivirus</b>
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<pre><b>INT 21 - VIRUS - "Nina" - INSTALLATION CHECK</b>

	AX = 9753h
Return: never (executes original program) if virus resident
SeeAlso: AH=90h"VIRUS",AX=A1D5h"VIRUS",AX=9AD5h"VIRUS"
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