Sorry guys, I've been busy in the bad kind of RL: Real Life, not Renegade Legion

No MSCDEX is necessary in DOSBox.
Do you know what the deal is Backlash??
Here's my freaking config;s autoexec stuff (created using DOG), dunno why it wouldn't work:
mount a d:\ -t cdrom -usecd 0
mount y c:\games\
Y:
cd/
cd renegade
call RENEGADE.BAT
This looks very close. I have a hunch: perhaps try changing the first line to "mount d d:\ -t cdrom -usecd 0"
A: was historically considered the floppy drive so the game might not be even considering drive letters less than C.
i never got it to play either
i think i need to reconfig dosbox settings to allow/enable XMS memory? not sure which setting right now
but i cant save the dosbox config file! it gave me some "directory not found" sh*t when i tried to save (even though i can browse to that directory)
Dunno why the directory not found would happen. "dosbox.conf" is a simple text file. Try opening it with Notepad or something else simple.
In the [dos] section of dosbox.conf you can set xms=true and ems=false as you like. I myself have both set to true and it works fine. I'm fairly certain xms defaults to true so you shouldn't have had to mess with that.