Just a short note about a couple of tools I've been using when developing WPF applications. Please refer to the links for more information about the tools.

Snoop provides visual debugging of WPF applications at runtime.

Crack.NET is a runtime debugging and scripting tool. Also supports Windows Forms applications.

Mole is a Visual Studio visualizer allowing unlimited drilling into objects and sub-objects.

Due to the way the hooks are written, neither Snoop nor Crack.NET will work on 64-bit processes. However, there is an x64 version of Snoop available on Dan’s IK Blog (there is an updated version here). This version is based on an earlier version of Snoop where property value editing is supported, so even though you’re living in a 32-bit world, you can take advantage of this version.

Check them out!