Needless to say, we haven't received any feedback indicating a problem like this, nor has any related problem come up in our testing. leconyc, in addition to publicly announcing a problem, it would be handy for you to contact support@lairware.com as well.

It is certainly true that one should try out shareware before buying it -- and in this case, you simply can't "run your entire library" until you have purchased MPFreaker.