7zip is icky ugly ungainly unwieldy unfriendly crap... Last I used it it didn't even add a context menu to the shell, a must-have feature IMO.
I used to swear by the Last free Version of PowerArchiver (6.0) but a change in the rar format since 6.0's release has broken that Version's rar support.
I'm now looking for a new archiver and shall try IZ
