I guess I'm confused why you need MAME32 in the first place. GameEx is the front end you use to launch MAME, so you don't use the features of MAME32 in any way. If you want something to help in setting up games prior to running GameEx, then you can use MAME32 for that no problem. Once it's set up, you can then run MAME with all the same files MAME32 created. If you do that, then you will need a patched MAME (to avoid the nag screen) and MAME32 (patching not required). It should be possible to use the MAME compiler to build a patched MAME32. As I said, it was discussed at some point a while back. We try to keep the forum clean, so this should be the location to find info on compiling it, but it's possible it was discussed in another thread. I would suggest the search feature on the forum to see if there's another thread that deals with MAME32 compiling. If you find something, please post a link here so the moderators can look into copying the content to this thread.