If you’re like me and like to open reflector from the Visual Studio Tools menu, you’ll probably have noticed that you need to have a different configuration (or list) of assemblies when developing with Windows Phone 7. 

To make it simple to setup, I’ve attached a configuration file.

• download the attached configuration and save it to a writeable path
• In Visual Studio, click on the External Tools menu item (from the Tools menu), and add a new item:
• set the command path the path to the full path of reflector.exe
• make the Arguments:
  /configuration:”Full Path To config file\reflector_phone.txt”   $(TargetPath)