Category: DOS extenders
Flags: available only in protected mode
INT 21 - Phar Lap 386/DOS-Extender v3.0+ - INSTALL MOD. SEG FAILURE HANDLER AX = 253Ah ES:EBX -> function to be called when INT 21/AH=4Ah is about to return an error Return: CF clear ES:EBX -> previous handler SeeAlso: AH=4Ah