Dispose XMLReader in SessionLogReader

I think you need to add this to your Cleanup method:
You have to cast it to IDisposable before disposing it because it uses explicit interface implementation.

Thanks for your hint.
Is there any reason you consider it that important? Apart from being a good practice?

Nope, I don't think it's important at all since you're already disposing the stream it's using, but it is good practice. I was just going through the source to try to understand some things better and noticed it.

Ok. Done. Thanks.