INT 2F - CD-ROM - CORELCDX - INSTALLATION CHECK AX = 15FFh BX = 0000h Return: BX = ABCDh if CORELCDX loaded Note: Corel's CORELCDX.COM is a replacement for MSCDEX.EXE; it also supports the standard MSCDEX installation check calls AX=1500h and AX=150Ch SeeAlso: AX=1500h"CD-ROM",AX=150Ch