1)   .NET Zip Component ZipForge.NET 2.01
ZipForge.NET is a fast and powerful Zip component for .NET. It lets you easily integrate ZIP compression support into your C# or VB.NET applications. ZipForge.NET features include strong AES encryption, Unicode filenames, SFX and much more.

 2)   ZipForge.NET for Compact Framework 1.0
Fast ZIP compression component for .NET Compact Framework. Create ZIP archives, add files and directories, extract files, delete files, list files within archive with full details. Transaction system, progress indication, Unicode filenames.