|Download||.exe||32-bit x86||7-Zip for 32-bit Windows|
|Download||.msi||64-bit x64||7-Zip for 64-bit Windows x64 (Intel 64 or AMD64)|
|Download||.msi||IA-64||7-Zip for IA-64 Itanium CPU|
|Download||.exe||ARM||7-Zip for Windows Mobile / Windows CE (ARM)|
|Download||.zip||32-bit||7-Zip Command Line Version|
|Download||.tar.bz2||Any||7-Zip Source code|
|Download||.7z||32-bit||7z Library, SFXs for installers, Plugin for FAR Manager|
|Download||.tar.bz2||Any||LZMA SDK (C, C++, C#, Java)|
7-Zip is an open source software. Most of the source code are based on GNU LGPL license agreement. Based on the BSD license code AES released under. UnRAR code based on two license: GNU LGPL license and unRAR restrictions. You can use any computer use 7-Zip, including using in commercial usage of computer, no 7-Zip for donations or pay does not affect your use. But you can donate through the way to support 7-Zip’s development in the future. The latest stable release: 7-Zip 9.20 (nov. 18, 2010 released)
Compression and decompression format support: 7z, ZIP, GZIP, BZIP2 and TAR (at present does not support RAR format, because RAR is a kind of business format)
Compressed files skills
1 solid compression [if documents and less solid compression effect is not apparent, need not]
2. Big dictionary [dictionary with best use, or solid compression effect lousy (consume time and compression ratio not cost-effective)]
3. Compressed way at least standard compressed, rapid compression to talk, rapid compression will make solid compression + dictionary effect disappeared = =! At that time is of the previous version has the problem, now of the 4.60 version doesn’t seem to be the problem, but I don’t have detailed test, it’s impossible to say. But with standard compressed to do not have a problem. interface interface With 7-ZIP. You should be able to see you set up to how much memory consumption you must have corresponding actual free memory. Or compression speed will be more and more slow.. Because use virtual memory exchange……. Your hard disk now no memory quick..
Other Settings as word size generally with the default, the previous version is the number of the smaller, speed will come on [the current version + hardware is bad to say]. Generally do not change. Before the parameters of the compression CHM had limit, the word is the largest size, plus limit compression, but actually compression effect on strict said is not good. 7-Zip 7-Zip Solid [solid real] data size as long as don’t choose the solid real is solid compressed. The general compression ratio influence not too big [a little] general 64 M-256 M. The effect is. When you just want to pack good solid compressed packages unzip a small file, the compression software need most compressed to compress the data to work out how much the file you want. If only time will be the whole compressed package all data work out words, this Settings without fail, if it is only part of the solution compress data words, this set is useful. Otherwise you’ll have to wait and compression software solutions to the many files compressed to the file you want.
You may interest in the shareware compressing tool Winrar free download