I use both. Sometimes I need to compress in 7-Zip format.

used both, for normal user like me there is nothing different if u used either software. currently using 7zip.

I want to ask whether 7zip can use for company users?? illegal or not?

I got use this for my company now ZipGenius(freeware) but this cant unzip .rar

This post has been edited by jason07: Oct 23 2008, 12:55 PM

Why illegal?
Its freeware software..
I think 7-Zip better..It can extract .exe files and many more..
Plus its Compact,fast,easi and freeware..

Im using 7zip for my company too...
so far so good

7zip is good (as it's free)

I use ALZip

im using winrar as mostly many ppl compress their files to .rar. actually im not really concern about 7zip or winrar, as long they work find for me..

i using both

I use both. But my WinRAR can not extract .cbr directly (7zip can ).

i prefer winrar because it have the unzip wizard.

I choose WINRAR coz can make password with it..
Others compress software dunno izzit can or not..hehe..

I use both. But winrar is better and faster

seriously, i love winrar.. now we have the winrar..

i choose winrar.

winrar man. so fast

winzip hav the function.

You guys are making fanboyism remarks. 7zip substantially performs better than WinRAR. But the drawback is that 7zip consumes more hardware resources during the compression. There are other software which are better than both 7zip and WinRAR in terms of speed vs compression. WinRAR, however, is pretty much user friendly but the annoying "please buy winrar" pop-up whenever you're opening a file with WinRAR make some people hate it. While 7zip is free plus you can actually playing around with the command tools. 7zip does able to make password but it cannot compressed into rar files as well as WinRAR cannot compressed into 7z files. I will only uses WinRAR if there's a need for me to compress files into rar files. Otherwise, I will stick with 7zip for decompressing files (faster than WinRAR as my PC can handle it).

7zip cannot compressed into rar files and WinRAR cannot compressed into 7z files; is it because they cannot make it or because of the copyright issue for the compression algorithm?? and the winzip format is copyright free/open source?

It's about license. WinRAR only allow it's own software to compress as rar files. Just like 7zip for it's own property. Winzip is not free however. Perhaps they already gained income generated from Microsoft as they using it as main compression thingy in windows. Also letting other developers to use their compression method.