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

	AX = 330Fh
Return: AL = 0Fh if resident (DOS returns AL=FFh)
SeeAlso: AX=30F1h,AX=33DAh,AX=33E0h
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