Free desktop client software for windows

Qube is a useful application that centers around the concept of browserless search, blending third generation websearch capabilities with user collaboration, progressive advertising & social networking.
Qube is the third generation desktop search client providing instant, browserless access to information from the collective index of traditional search engines. Qube enables, for the first time ever, single-click Websearch, without having to use a browser, switch applications or even enter a keyword.
It Instantly searches any text already onscreen (or manually entered) and retrieves results in less than a second, while also enhancing your search with features like realtime Spell Checker, History Logging, Dictionary results and more, all without any performance penalties.