Batch Zip Toolkit 

Batch Zip Toolkit is the award winning, all in one file compression package that allows you to compress and decompress files individually - in batch. It supports 13 different Archive formats and lots more!
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HTMLZip 

HTMLZip is a real html packer. Your heavy html documents becomes small and fast for loading. Decompression based on JavaScript and not required other soft. The size is being reduced down to 20%-70% of original. Source of html page is not available!
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llPDFLibX 

ActiveX Server for create PDF files on fly. Easy way for create PDF files from your application Features: Real hDC, Acroforms, Watermarks, Thumbnail, JavaScript, Encryption, Outlines,Compression, Image compression and much much more...
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Chilkat Real-Time Compression Component 

Chilkat RT Compress is a free COM component offering real-time memory-to-memory compression and decompression.
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Chilkat Zip ActiveX - Affordable Zip ActiveX 

An affordable, advanced, feature-rich Zip ActiveX compression component that can satisfy your application's file and data compression needs. Includes file and in-memory Zip and Unzip, AES encryption, Zip password-protection, self-extract, more...
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Xceed Zip for .NET 

Xceed Zip for .NET is a 100% managed data compression and all-purpose file manipulation class library for .NET. It provides flexible zip, unzip, streaming, self-extracting and an innovative and extensible filesystem object model.
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