Downloaded today's patch (2.4.5314) and placed mb_Discogs.dll in the Plugins folder. Launched MB and went to Preferences \ Plugins. Clicked on CONFIGURE for the Discogs plugin and received this:
MusicBee v2.4.5314.29593 (Win6.1), 20 Jul 2014 14:56:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at MusicBeePlugin.Plugin.Configure(IntPtr panelHandle)
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at #=q1x44a3z2RoFRJ23xCh700z4KR$dQxiEAV_W6kT64v$s=.#=qZg1gcHk1eBX32DCFKTDKtQ==(IntPtr #=qnq0Eau3rXD_x3ry1Ek9tKA==)