Filzip 

Filzip is THE ultimate freeware archiver to handle about 15 archive formats for Windows. It supports full shell integration what means creating, extracting, testing and emailing archives with one click. It's really fast.
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File2Pack SFX 

File2Pack SFX is a file packer/compressor manager and P2F Self Extractor Compiler with excellent file compression ratio. This tool will pack all your files into one package that can serve as a file backup or to compile a F2P Self Extractor executable
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ArcConvert 

This convertor can convert the following archives:7-ZIP/ LZH/ CAB/ ZIP/ ARJ/ ACE/ RAR/ TAR/ TGZ/ GZ/ Z/ BZ2/ YZ1/ YZ2/ GCA/ BEL/ RPM/ DEB/ BH/ Noa32/ HKI/ PAQAR/ SQX/ HA/ ZOO/ UHARC/ LFB/ ZLIB/ UCL/ IMP/ RS/ SPL/ APK/ Arc/ DZ/ MSI to many archive
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RSP GZip Compressor OCX 

ActiveX OCX to compress files in the standard gzip format , the code is optimized for new processors , the compression code execute at realtime , the compression engine is loaded dynamically and with the ability to pause , resume and cance
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Power Search 

A fast and featured archive peeking uitlity supporting well known formats like Zip, Cab, Tar, Arj, Rar, Ace, lha and zoo. This distribution includes the complete Delphi source code!.
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RSP GZip Compressor .Net 

.Net control to compress and uncompress files in the standard gzip format , the code is optimized for new processors , running very fast in the win32 environment , the compression engine is loaded dinamically in the control
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