7-Zip

Great - Never had issues, great multi-OS support, easy to use even for those not well versed in file compression.
~ anonymous on Feb 6, 2010

Great - Used this for a long time now, I install on any new installation immediately, works excellently.
~ anonymous on Feb 4, 2010

Great - Supports all popular archive formats and it's own .7z format offers even compresson sizes!
~ anonymous on Jan 31, 2010

Great - It's great coz it's good coz I use it coz it works!
~ anonymous on Jan 31, 2010

Great - Can open darn near anything you run across, and does it all intuitively. 7zip is always in the first batch of tools I install when "moving in" to a new Windows system.
~ anonymous on Jan 31, 2010

Great -
~ anonymous on Jan 31, 2010

Great - Best compression program ever. Doesn't take over your computer or install tons of secondary applets.
~ anonymous on Jan 29, 2010

Great - Terrible terrible interface, but if you turn on Explorer integration it's better. Still, this should handle most any archiving need you have, unless you're crazily into RARs. (It supports it, but I think heavy users rely on WinRAR.)
~ anonymous on Jan 29, 2010

Great - Free, supports loads of formats, bit ugly though.
Best choice for windows.
~ anonymous on Jan 29, 2010

Just OK - software has a possible memory leak on windows 7.
~ anonymous on Jan 29, 2010

Great - standardizing company on this.
~ anonymous on Jan 28, 2010

Great - 7-zip has powerful moo-powers.
~ anonymous on Jan 27, 2010

Great -
~ anonymous on Jan 26, 2010

Great - one-stop shop for managing file archives (of just about any type) in windows.
~ anonymous on Jan 26, 2010

Great - Integrates into the context menu. Opens more formats and works better than Winrar
~ anonymous on Jan 25, 2010

Great - It opens everything
~ anonymous on Dec 29, 2009

Great -
~ anonymous on Dec 29, 2009

Great - Fast, supports many formats, non-commercial, good integration with Windows
~ InnerGeek on Dec 11, 2009

Great - Free, efficient, simple
~ anonymous on Sep 29, 2009

Great - full featured and free
~ anonymous on Sep 29, 2009

Great - Fast and easy
~ anonymous on Sep 15, 2009

Great - The texture that they have a filament cart to liberate 7-zip and a invasive shew database is normally the categorization on the cake.
~ Samson on Sep 15, 2009

Great - Compresses like a ch-- ALL GLORY TO THE HYPNOTOAD
~ Jordan on Sep 14, 2009

Great - 7-Zip can open many archive types and its compressor is extremely effective (it really, really compresses well)
~ anonymous on Sep 12, 2009

Great -
~ anonymous on Sep 10, 2009

Great - Easy to use, and the best compression around.
~ WarBird on Sep 10, 2009

Just OK - Um no Mac OS X?
~ anonymous on Sep 10, 2009

Great - It's the best zip program by far.
~ anonymous on Sep 9, 2009

Great - Fast, simple, free!
~ anonymous on Sep 9, 2009

Great - Poop!
~ anonymous on Sep 9, 2009

Great - Fantastic compression rates!
~ anonymous on Sep 8, 2009

Great - free open source what x64 what more could you want.
~ anonymous on Sep 6, 2009

Great -
~ anonymous on Sep 5, 2009

Great - valuable tool. very good functionality, nice number of compression algos. AES add-on is a awesome feature.
~ milo on Sep 3, 2009

Great - Great support for RAR format, not found in other freeware / shareware / trialware
~ anonymous on Sep 3, 2009

Great - It does everything WinZip does plus more: RAR support, bz2 support, 7z support

Very good shell integration and it is Free Software
~ anonymous on Sep 3, 2009

Great - Fast, free, shell integration.
~ anonymous on Sep 2, 2009

Great - Fast and free. Supporting all formats I need. Also 64bit version released...
~ anonymous on Sep 2, 2009

Great -
~ sanelz on Jul 11, 2009

Great - Supports loads of different archive formats, 7z format has a good compression ratio.
~ anonymous on Jun 28, 2009

Just OK - Windows interface is quirky, using Modal/Modeless windows in the wrong places, enabling menu options which should be greyed out, other small issues.
~ anonymous on Jun 28, 2009

Great - Best non-intrusive UI for an unzipping package
~ anonymous on Jun 28, 2009

Great - easy to use and great compression. why pay for a zip program when you can get something better for free?
~ anonymous on Jun 27, 2009

Great - it just works without fuss
~ anonymous on Jun 18, 2009

Great - Its free and it works with alot of formats.
~ anonymous on Jun 17, 2009

Great - fast, integrates well into Windows Explorer
~ anonymous on Jun 17, 2009

Just OK - blah!
~ anonymous on Jun 17, 2009

Great - Handles all common archive types, achieves high compression, and integrates smoothly with Windows. What more could you ask for?!
~ anonymous on Jun 16, 2009

Great - Small size, works the way it says it does, good compression. What's NOT great? :)
~ anonymous on Jun 16, 2009

Great -
~ anonymous on Jun 16, 2009

Great - Clean, fast, free. Does everything you want with no nagging.
~ anonymous on Jun 14, 2009

Great -
~ anonymous on Jun 13, 2009

Great - Opens absolutely everything, extracts things quickly, and has a perfect interface.
~ anonymous on Jun 13, 2009