Please add ExtractNow. Its a simple but great program if you want to extract a lot of archives over multiple folders and subfolders. It is portable but not stealth as it writes some reg keys. I always have installed on my thumb drive.

Available languages: English only :(
Compatibility with operating systems: at least Microsoft Windows 95 and Internet Explorer 5.5, runs fine under XP, Vista and Windows 7
Author description:
"Features
Simple and intuitive user interface for batch archive extractions
Supports most major archive formats
Search through folders recursively for archives
Use password lists to find the correct password for an archive
Ability to control what happens after extraction
Monitor directories for archives and automatically extract them
Windows Explorer integration through file type assocations and context menus
Support for advanced customizations through the use of Lua scripting"
Link: http://www.extractnow.com/

SlrG

There is already a similar application "Universal Extractor" in the LiberKey catalog.
Or, is ExtractNow better or different?

Seems to be just another archive extractor with a front end showing all extracts in a single window.

Universal Extractor and 7-Zip are complementary