In Part 2 [Part 1], David Washington and Brandon Paddock show how developers can build federated search applications that enable you to easily search your organization's intranet or the Web and integrate those search results directly into Windows Explorer.

The best part is that instead of needing to install software on Windows 7 to get new search providers, you simply run an XML configuration file to add a search provider to your machine!

Windows 7: Find and Organize Part 2 - Building Federated Search applications