Universal Extractor Note: Development on the 'official' version of Universal Extractor has stopped. It's not exactly abandoned, but since I no longer run Windows it's not something I have much of a need for these days. There have been a lot of unofficial forks and continuations released, and while I appreciate the effort and enthusiasm, most of those have been closed source updates that I wouldn't recommend.
That said, I recently discovered a project calling itself Universal Extractor 2. I'm not affiliated with the project in any way, but it seems to be a nice continuation of the project in the original open source spirit as my own creation. I've not used it myself, but if you're having trouble with the official version or not able to get it to extract newer formats and executables, I'd recommend giving Bioruebe's version a try.