You posted in the Zip for .NET section, but from your post I think you are talking about the Zip Compression Library. Am I mistaken?
Also, yesterday we received the exact same question from someone else, which I assume is a coworker. If that is the case, please do not submit the same question multiple times like this, as it can cause us to end up doing the same work twice. Thank you for your understanding.
Here is the answer I already gave your coworker:
I have never heard of this issue, so I do not know if it is something that will be fixed by just upgrading to the latest version. My suggestion would be to download a trial of the latest version and simply test it out.