Win7z is a new GUI for 7-Zip and modify by 7-Zip v9.20 Source Code. It is based on the original "7-Zip" project, contains additional features and bug fixes.
7-Zip is a high-compression file archiver. It was designed by Igor Pavlov. You can view more details from www.7-zip.org
Without asking, installed a search bar into my browser, and some other unknown piece of software. When running Windows uninstall, it then put up disingenuous warnings about loss of protection, but all that really meant was that they don't get to keep control of the user's search. I hate this stuff, and I thought SourceForge was a place it didn't happen. Guess I was wrong. Never bothered with the utility, so I can't comment on it's functionality. Removed it immediately.