Having trouble running Project 64 through Steam...

[danmc92]

For those that don't know, Project 64 is a N64 emulator (Note: I legally own all of the games that I have ROMs for, and no, I won't tell you where to download them).

Anyways, what I've been trying to do is run each of my ROMs individually through Steam (if you don't know what I mean, this is a good example.[fireden.net] ).

The usual way to do this is by adding the emulator as a "Non-Steam Game" and adding the specific ROM to the target path.
I've had no problem doing this with my Super NES ROMs (using the snes9x emulator), but for some reason, I just can't get it to work with Project 64. Every time the ROM is about to load, I get an "Attempt to open file has failed" message. I've loaded the ROMs through Project 64 without going through Steam, and they work just fine. But for some reason, they won't open through Steam.
I've tried everything: I've made it so .z64 files are only opened through the emulator, I've enabled all of the file types to Project 64's Shell Integration, etc. But no luck

Any help would be much appreciated!

[FeaR]

http://www.youtube.com/watch?v=3wqEFKTRu-8
Watch this video.

This might help >:D