When developing I often use tools that I am so familiar with that I don't even notice them anymore. I just regard them as standard & out of the box. These utilities make my everyday life much easier and enjoyable. Some of the utils are intergrated with Visual Studio (currently 2010) and some are stand-alone.
For myself to remember which ones I need to install when re-setup my system and for you my dear reader I created a list of Dev Tools. Probably never complete and sometime outdated. Please mail me for ideas or suggestions. They are highly appreciated!
Stand alone applications
The RegEx coach
The Regex Coach is a graphical application for Windows which can be used to experiment with (Perl-compatible) regular expressions interactively.
Attrice TFS Sidekicks
Team Foundation Sidekicks is a suite of tools for Microsoft Team Foundation Server administrators and advanced users providing Graphic User Interface for administrative and advanced version control tasks in multi-user TFS environments.
.NET Reflector enables you to easily view, navigate, and search through, the class hierarchies of .NET assemblies, even if you don’t have the code for them. With it, you can decompile and analyze .NET assemblies in C#, Visual Basic, and IL.
Resharper (non-free software)
Simply put, ReSharper is a must-have productivity tool for .NET developers. It fully integrates with Visual Studio to intelligently and powerfully extend the functionality that is native to Visual Studio. ReSharper provides solution-wide error highlighting on the fly, instant solutions for found errors, over 30 advanced code refactorings, superior unit testing tools, handy navigation and search features, single-click code formatting and cleanup, automatic code generation and templates, and a lot more productivity features for C#, VB.NET, ASP.NET, XML, and XAML.
FinalBuilder is an automated build and release management solution for Windows software developers and SCM professionals. Use FinalBuilder to define, debug, maintain, run and schedule reliable and repeatable build processes.
GhostDoc VS extension
GhostDoc is a free Visual Studio extension that automatically generates XML documentation comments for methods and properties based on their type, parameters, name, and other contextual information.
Snippet Compiler compiles snippets.
Great testing and debugging tool for working with webservices.