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15BFDCDX0000

Category: DOS extenders

INT 15 - Rational Systems DOS/4GW - INSTALLATION CHECK

	AX = BFDCh
	DX = 0000h
	SI = 0000h
Return: DX = nonzero if installed
	    DX:SI -> XBRK structure (see #00508)
SeeAlso: AX=BF02h

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