Why not make this as a plugin (bass_mp3.dll)?
that would be awesome!!!
You can dynamically load the plugin as needed and
avoid licensing and patent issues
Windows 7 N: Windows 7 N is meant for European market, and includes the same functionality as Windows 7, except that it does not include Windows Media Player and related technologies.
Media Feature Pack for Windows 7 N is 303.6 MB for 64 Bit
just a suggestion but
maybe just keep the MP3 free version and if bass_mp3.dll is loaded use the plugin as the main decoder!