Category: <b>virus/antivirus</b>
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<pre><b>INT 21 - VIRUS - "Halloween.1839" - INSTALLATION CHECK</b>

	AX = EC27h
Return: AX = 4A52h ("JR") if resident
SeeAlso: AH=E7h"VIRUS",AX=E900h"VIRUS",AX=EC59h"VIRUS"
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