Please note that I am mainly a SQL dev, with little current experience in .Net/C#. We are using an older (4.0?) version of icSharp and I have seen a few posts on Unix Z Compression not being supported. (http://community.sharpdevelop.net/forums/t/11466.aspx & 3850). I also checked everywhere to see if any updates have been completed since then, but could not find anything. Bottom line, is there a version (supported or not) that has a fix that allows for Unix Z Compression files to be unzipped?