Even this is possible, this is a helpful instruction setup when you want to play something like Zy-El, which is version 1.09.
- Install the mod you have planned. Hopefully, along with the D2Loader file
- Copy EVERY FILE in the directory that is an exe, mpq and dll, and move them to a created directory either in a D2 sub-directory or somewhere else.
- Link a shortcut to the D2Loader file and test it.
If you want to run Zy-el with 1.10 mods. You will need to reinstall d2 and update to 1.09d. Then copy all the d2 files along with the overwrited Zy-el files into another directory. Then overwrite the originals with the upgrade to 1.10.
Because the executable will check for the files in the directory that are existing with the exe. With this trick, you can copy as many folders as you can with different mods, providing you have the HD space to spare. The only con is it may check for CD if you say, run the 1.09d exe. This is remedied when you install D2loader 1.09 and 1.10. Just make sure the D2Loader 1.10 isnt in the 1.09d files, or it will crash upon activating.