Entrian Source Search

Entrian Source Search is a Visual Studio Add-in that works like a search engine for your source code.

No matter how big or small your projects, it's the fastest way to search and navigate your code.
Search everything – not just code, but comments, strings, resources, documentation, notes, ChangeLogs, everything. Source Search goes way beyond a refactoring tool, or Find All References, finding important information in places other than just the source files in your solution.