I have a bunch of old Blood maps on disc but have no clue how to get them to work. I have Gog's version of Blood as well as DosBox. I'm running Windows 7. I'd also like to play some of the new maps people have made.

Help?

You need to edit your dosboxBlood.conf file. Near the bottom of the text you will see a few lines that read

mount c: "."
c:
blood.exe
exit

You will want to edit the Blood.exe line.

For whole episodes, you should have an ini file that will reference the maps that make up the episode.

Be sure the ini file and the episode maps are in the same directory as Blood.exe and modify your dosboxBlood.conf file so the Blood.exe line reads

Blood.exe -ini episodeName.ini

For single maps you, again, be sure the map is in the same directory as your Blood.exe
and edit your dosboxBlood.conf file as such:

Blood.exe -map mapName.map

That worked! Thanks!!

But how do you get user created maps with new art and sounds to work ? I'm trying to play a usermap called "Forsaken Crypt". (http://blood.freeminded.de/index.php?section=maps&id=439) I tried the instructions that DustyStyx listed but the game crashed when I tried to launch the level at the start menu. Thanks in advance.

That takes a little extra work. You will probably need to load the art, sound or reference files in addition to the ini file. use the -art, -snd, & -rff switches respectively. Did Forsaken Crypt come with a bat file by chance? Everything might be listed there.

addendum: If it is this map: http://blood.freeminded.de/index.php?section=maps&id=439
Just replace call to Blood.exe in your dosboxBlood_single.conf file with fcr.bat or fcrnocd.bat, like so:

mount c: "."
c:
frc.bat
exit

You might want to back up your sounds.rff file first though, just in case something goes wrong.

addendum2: Just noticed that the original message is kind of old, GoG use to have the autoexec lines at the bottom of dosboxBlood.conf. That was changed with version 2 of the installer, when they separated it out as dosboxBlood_single.conf, sorry for any confusion.

Well I tried that but when I tried to play the map in the game menu I got
"src\db.cpp(1144): error opening map file FCR" anybody know how to fix this? Thanks!

I renamed the fcr.map.map to fcr.map, but I'm getting another error: src\asound.cpp(203): Missing sound #38 used in ambient sound generator 80, but I did notice that barf was not importing the files correctly. checking into that now.

Should have taken my own advice and backed up my sounds.rff file... I goofed it up playing with BARF. All's well now.
Just rename fcr.MAP.map to fcr.MAP

Awesome!! I finally got it working!! :) Thanks man!