Vista

That didn't seem to work. Is there any other way?

Yep, I followed that step-for-step, and it didn't work.

I still can't figure it out (specially since i don't have Vista), but i'll keep asking around. I know some people who managed to get JK to run on Vista, but i don't know how...

If i can find out anything, i'll post it right away. Sorry i can't help you for now...

Yeah, I've been doing a lot of looking myself, and I know that there's people that have done it... It's just a matter of finding out how. 🙄

Yeah, I've been doing a lot of looking myself, and I know that there's people that have done it... It's just a matter of finding out how.

I need more information. What exactly is the problem? Please describe in detail. Screenshots are always helpful.

Well, it's not me personally that's doing it, but I'm talking him through the instructions over the phone. After we do all the steps and he tries to run jk.exe, he gets a warning that says
ERR_CANNOT_LOAD_FILE
followed by a bunch of Japanese looking characters.

It's not a compatibility issue. I've encountered it personally in the past. I believe it is related to install corruption. Are you installing from the JK CD or a downloaded copy(important, might be a problem with pirated copy)?

Also, run the JK uninstall, delete the Jedi Knight directory, and reinstall. Let me know what happens

Some further follow up:
I think it has to do with GOB corruption, specifically.

Another possibility is a DirectX issue, try reinstalling DirectX by upgrading to latest version(9?).

He's installing off of a copy I made of my legit JK. I'll have him try it tomorrow and let you know.