New versions of Audiobook Cutter should probably be ignored. Not only is no zip version offered anymore, the new version is nagware (register!). The program is openable by MSI settings on universal extractor and main files are under \PFiles\AudiobookCutterFE.
This happened when I tested version 1.5.2.148.
Sadly, the old version nags that there's a new version but the new version is more annoying.