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Int 2F Fn C000 U - WANg_er.com - Installation Check [U]
AX = C000h
Return: AL = FFh if installed
ES = segment of resident code
Program: WANG_ER is a TSR from Compaq which permits Compaq systems equipped
with 3-mode floppy drives to read Wang document diskettes
Note: AH=C0h is the default; WANG_ER scans all multiplex numbers from C0h to
FFh for a free spot on installation. The installation check is
completed by comparing the resident code with the copy in the
transient program
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