You're probably using Vista. If so you don't have writing rights for the program files folder. Just move DOSBox to another folder like c:\tools\ and it should work.

Or he could change the configuration file and point the mapper file to a folder where he HAS writing rights.

sure, but having DOSBox in a restricted path produces other problems as well, like when you want to use a frontend to edit the conf or anything like that

Corrent, but frontends usually make their own copies of the config file, so that should not be a problem.

No, im using XP.

This particualr .conf is in C:\spg
The mapper file is in the DOXbox folder.

The mapper file is in the DOXbox folder.

Obviously not in the default installation folder.

dbarton wrote:

This particualr .conf is in C:\spg
The mapper file is in the DOXbox folder.

I don't think DOSBox is smart enough to load the config file from one folder, and the mapper.txt file from another. You will have to tell it exactly where that mapper.txt file is.

I'm not on that machine, but as I recall I put mapper.txt in c:\program files\dos-box\ which is the location DOS box autmatically installed to..
I created a blank mapper.txt there as one didn't exist.

Since I run my .conf file from c:\spg does my mapper file have to exist in c:\spg instead?

My conf file has the full path to the mapper file listed.

Your mapper file needs to be where the conf file says it is. It is that simple.

I think I have this all right, but still get that error msg.

I'm using a conf with this in it:
[sdl]
etc
etc
mapperfile="c:\Program Files\DOSbox-0.70\mapper.txt"
etc
etc

The mapper.txt file is there and is empty.
I'm confused. Doesn't this all look right?

Why 0.70?

I'm using Don Wells patch for MIDI output (TESTMT32), and that is only in .70 as far as I know.

dbarton wrote:

mapperfile="c:\Program Files\DOSbox-0.70\mapper.txt"

Looks okay. And you don't start DOSBox from some frontend? Do you see anything, any error messages, in the DOSBox console window? Try with 0.72 and see if it works there. Try moving the mapper file to some other location.

the error messgae is:

can't open "c:\program files\dos-box\mapper.txt" for saving the mappings.

Isn't it strange that you write this in your config file:

"c:\Program Files\DOSbox-0.70\mapper.txt"

and DOSBox complains about this:

"c:\program files\dos-box\mapper.txt"

??

One was wriiten from my memory when I wasnt in frotn of the machne...

The error message points to the real place..