Int 16/AH=67h

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Doorway v2.x+ - INSTALLATION CHECK / REDIRECTION CONTROLa

AH = 67h
AL = Doorway mode
00h turn off DOS redirection
01h turn on DOS redirection

Return:
AH = 80h if Doorway is actively redirecting output AL = 80h if Doorway was already in requested mode

Program: Doorway is a program by Marshall Dudley which allows most DOS programs to run as a BBS door without modification

Note: To perform an installation check without changing the redirection state, if is necessary to restore the original mode if AL was not 80h on return

See Also: INT 10/AH=BBh"Doorway"

Category: Uncatagorized - Int 16h - D

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