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Free 7-zip Does More Than Windows' Built-in Tool | Pcworld

7-Zip screenshot Or you can use 7-Zip, which gives you a couple of the most important features for free. It's available in 32-bit and 64-bit version s. Not pretty to look at, 7-Zip provides plenty of control for how you create your archives. For instance, 7-Zip can compress and decompress WinZip-compatible AES-encrypted .zip files. That's vital if you need to e-mail sensitive data, because the .zip format's standard password protection (the only kind Windows supports) is easy to crack. But with 7-Zip, you can share truly-secure data with people who use WinZip, PKZip, WinRar , PowerArchiver, and other programs. And if they use none of those programs and don't want to spend money, you can tell them to get 7-Zip. 7-Zip also allows you http://7-zipdownload.us to compress and e-mail files in one easy step. Just right-click a file or files in Windows Explorer and select 7-Zip then Compress and email.

Original article here: http://www.pcworld.com/article/194359/7Zip.html

Unix tip: 7-Zip to the rescue | ITworld

8 Hide mayankleoboy1 , March 18, 2013 11:06 PM 1. There is no difference between LZMA and LZM2 . Both are the same algorithm. The only difference is LZMA is limited to 2 threads. LZMA2 is much more threaded, but uses double the amount of RAM. 2. PPMd is strictly for compressing text. It compresses text better than any other algo. But it is limited to 1 core only.

Original article here: http://www.tomshardware.com/reviews/winrar-winzip-7-zip-magicrar,3436.html

Compression Performance: 7-Zip, MagicRAR, WinRAR, WinZip - Compression: Your Data, On A Diet

I found out that I could unzip and extract from the iso file with one running of 7-Zip. Here's how it worked: With 7-Zip installed on my laptop, I right clicked on the first of the Solaris iso.zip files. I then: selected 7-Zip -> Open Archive to open the iso.tar file double-clicked on the iso file opened the Solaris_10 folder opened the Product folder and looked through the package folders (e.g., SUNWfbc, SUNWfchba and so on) until I found the one I needed. Now that's a handy tool! For zip and gzip files, 7-Zip's compression ration is said to be 2-10% better than what is provided by PKZip and WinZip. It also offers AES-256 encryption for 7z and ZIP formats should you need it. 7-Zip works in Windows 98, ME, NT, 200, XP (I use XP Professional) and Vista. It was a 2007 winner in the SourceForge.net Community Choice Awards for both Best Project and Best Technical Design.

Original article here: http://www.itworld.com/personal-tech/59945/7-zip-rescue

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