Int 2F/AX=0500h

DOS 3.0+ CRITICAL ERROR HANDLER - INSTALLATION CHECK

AX = 0500h

Return:
AL = status
00h not installed, OK to install
01h not installed, can't install
FFh installed
BX destroyed (MSCDEX v2.21-2.25)
CF clear (MSCDEX v2.21-2.25)

Desc: Determine whether a critical error message override is installed

Note: This set of functions allows a user program to partially or completely override the default critical error handler's message in COMMAND.COM

See Also: AH=05h - INT 24

Category: Shells/Command Interpreters - Int 2Fh - D

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