@Dooley as far as I remember, all game studio editors are working in free version (WED, MED, SED, but not sure about the GED). I remember there was a Lite-C version back in A7 times and it didn't have WED support, but it's not available anymore. Aside from that version differences are more about scene management, shader support, etc. Also it seems that the thread creator doesn't want to extract WAD files, but want to somehow extract textures/models from already compiled .WMB file. Sadly, I don't know how to do that.