i mistake about the version nr, the problem is with the latest version (MusicBee_Setup_2_5_5794.zip) the other version installs without a problem.
This is an update to the previous 2.5 version.
If you have MB already installed, extract the file from the new ZIP and place it in your MusicBee folder. Then run it and v2.5.5794 will update the existing 2.5 files.
If you don't have MB installed, download it from here
http://getmusicbee.com/download.html and install. Then follow the instructions above.