Category: disk I/O enhancements
INT 2F - MSCDEX (MS CD-ROM Extensions) - INSTALLATION CHECK AX = 1100h subfn DADAh STACK: WORD DADAh Return: AL = status 00h not installed, OK to install STACK unchanged 01h not installed, not OK to install STACK unchanged FFh installed STACK: WORD ADADh if MSCDEX installed DADBh if Lotus CD/Networker installed Note: although MSCDEX sets the stack word to ADADh on return, any value other than DADAh is considered to mean that MSCDEX is already installed; Lotus CD/Networker v4+ uses this feature to fool MSCDEX into thinking it is already installed when it is in fact CD/Networker that is installed Index: installation check;Lotus CD/Networker Index: Lotus CD/Networker;installation check