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7-Zip can also create self-extracting 7z archives.
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Its own 7z format is designed for high compression, and is supported by almost all file archiving tools – both paid-for and free – making it an ideal choice for sharing. You can locate files to be archived using a simple Windows Explorer-style file tree, or drag and drop them into the main window. It's only 1MB in size, and can pack and unpack just about any compressed file archive you can throw at it.ħ-Zip isn't the most attractive WinZip alternative around, but it's so well designed that you won't miss the slick interfaces of its paid-for equivalents. 7-Zip is open source, meaning it's completely free, even for commercial use.
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