Welcome to IPWorks Zip, a suite of easy, fast, and effective components that enable developers to rapidly add compression and decompression functionality to any application. The toolkit supports major compression/decompression and archiving standards, including Zip, Jar, Gzip, 7-Zip, Bzip2, ZCompress, and Tar. The IPWorks Zip components were built from the ground up, combining exceptional speed with an excellent data compression ratio.

Included Classes

Bzip2 The Bzip2 class implements a bzip2 compressor and decompressor. It is compliant with bzip2 specification.
Gzip The Gzip class implements a gzip compressor and decompressor. It is compliant with RFC 1952 and compatible with the UNIX gzip and gunzip utilities.
Jar The Jar class may be used to create or decompress Java archives.
OfficeDoc The OfficeDoc class implements support for the Open XML Packaging Format used in Office 2007 documents.
SevenZip The SevenZip class implements a 7zip-compatible compressor and decompressor.
Tar The Tar class implements a tar archive utility, compatible with the UNIX tar and untar utilities. The class supports the old v7 tar format. The class also implements gzip compression and can be used to create or decompress .tar.gz archives.
ZCompress The ZCompress class implements an LZC compressor and decompressor. It is compatible with the UNIX compress utility.
Zip The Zip class implements a PKZip-compatible Zip compressor and decompressor.
ZipSFX The ZipSFX class implements a PKZip-compatible Zip compressor to create a self-extracting archive which will run natively on Windows platforms.
ZipStream The ZipStream class is used to perform compression or decompression.

Additional Information

You will always find the latest information about IPWorks ZIP at our web site: We offer free, fully-functional 30-day trials for all of our products, and our technical support staff are happy to answer any questions you may have during your evaluation.

Please direct all technical questions to To help support technicians assist you as quickly as possible, please provide a detailed and accurate description of your problem, the results you expected, and the results that you received while using our product. For questions about licensing and pricing, and all other general inquiries, please contact

Thank You!

Thank you for choosing IPWorks ZIP for your development needs. We realize that you have a choice among development tools, and that by choosing us you are counting on us to be a key component in your business. We work around the clock to provide you with ongoing enhancements, support, and innovative products; and we will always do our best to exceed your expectations!