The leading .NET compression library. Designed with Microsoft's collaboration, this is the first and still the best 100%-managed .NET Zip library. Source code available in the Blueprint Edition. Used by Microsoft in Windows Home Server (press release)!

Built-in file transfer and filesystem capabilities let you easily manipulate files and folders anywhere: in Zip and Tar archives, in GZipped files, via secure FTP or FTP through HTTP proxies, on FTP sites, in streams, in memory, etc. Need “on-the-fly” zipping/unzipping? Consider Xceed Real-Time Zip for .NET.

Licensing: Per seat license.

Website: www.ca.com