DotNetZip is a FAST, FREE class library and toolset for manipulating zip files. Use VB, C# or any .NET language to easily create, extract, or update zip files. DotNetZip is the best open-source ZIP ...
DarkUI is an attempt to create a simple, extensible control library which emulates the look and feel of popular tabbed document interfaces such as Visual Studio, Photoshop, WebStorm, and XCode.