If you work with large solution which contains many projects, you know that finding specific (source)files can be a tough job.... until you use SonicFileFinder of Jens Schaller.

SonicFileFinder is a free add-in for Visual Studio 2005 that allows a fast and convenient search for any file within every Project of the loaded Solution by entering the complete filename or just a part of it. The found file(s) can either be edited with a single keystroke or a Windows Explorer can be opened at the file's location. Apply a shortcurt and within a couple of seconds you find the file you need, using the arrows keys you can easily scroll through the resultset and with Enter you open the file... in one word: Great!
SonicFileFinder