Category: <b>virus/antivirus</b>
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<pre><b>INT 21 - VIRUS - "Plovdiv 1.3" - INSTALLATION CHECK</b>

	AX = DAFEh
Return: AX = 1234h if resident
SeeAlso: AX=DADAh,AH=DDh"VIRUS",AH=DEh"VIRUS"
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