I had a spare five minutes so I tried to install V3 and got this. Windows tried to block the .exe so I ignored that and ran it anyway:
Error Log
20/01/2016 18:57:57 - 10.0.10586.0 - 3.0.5862.39843 - System.TypeInitializationException: The type initializer for '#=qzK1_w3uFLe4zondzAk0GyqAvVO94Ga8kDqaBqH$_qXQ=' threw an exception. ---> System.IO.FileNotFoundException: Could not find file 'D:\Users\phil\Downloads\MusicBee3_Patched\Configuration.xml'.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
at #=qzK1_w3uFLe4zondzAk0GyqAvVO94Ga8kDqaBqH$_qXQ=..cctor()
--- End of inner exception stack trace ---
at #=qzK1_w3uFLe4zondzAk0GyqAvVO94Ga8kDqaBqH$_qXQ=.#=q8Y2egKneOA3uWQvCpl8Npw==()
at #=q89Id81Zh7A45OyvL55HYIieUUzqC7RjGj$Rt4sRbbbo=.#=qzVczGtnZPdzT8casRQFyuw==(#=qrXeJFipWfHCq$cp4s4bueJs1A$uNm_DfiWix8xHuCjw= #=qDL7qQ6cC6S8av$kNrPBqnA==)
at MusicBee.MusicBeeApplication.#=qinUSYFDtWeBB5Ni485Msvg==(String[] #=qTtmS_SkHYt2y7hVU8sQCQQ==)
20/01/2016 19:03:01 - 10.0.10586.0 - 3.0.5862.39843 - System.TypeInitializationException: The type initializer for '#=qzK1_w3uFLe4zondzAk0GyqAvVO94Ga8kDqaBqH$_qXQ=' threw an exception. ---> System.IO.FileNotFoundException: Could not find file 'D:\Users\phil\Downloads\MusicBee3_Patched\Configuration.xml'.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options)
at #=qzK1_w3uFLe4zondzAk0GyqAvVO94Ga8kDqaBqH$_qXQ=..cctor()
--- End of inner exception stack trace ---
at #=qzK1_w3uFLe4zondzAk0GyqAvVO94Ga8kDqaBqH$_qXQ=.#=q8Y2egKneOA3uWQvCpl8Npw==()
at #=q89Id81Zh7A45OyvL55HYIieUUzqC7RjGj$Rt4sRbbbo=.#=qzVczGtnZPdzT8casRQFyuw==(#=qrXeJFipWfHCq$cp4s4bueJs1A$uNm_DfiWix8xHuCjw= #=qDL7qQ6cC6S8av$kNrPBqnA==)
at MusicBee.MusicBeeApplication.#=qinUSYFDtWeBB5Ni485Msvg==(String[] #=qTtmS_SkHYt2y7hVU8sQCQQ==)