How to Generate Public Key Token in VS 2005

1. In Visual Studio 2005, click Tools -> External Tools...
2. Click Add and enter the following into the different fields as displayed in the following screenshot:
   • Title: Get Public Key
   • Command: C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\Bin\sn.exe
   • Arguments: -Tp "$(TargetPath)"
   • Uncheck all options, except Use Output window\
     

http://www.andrewconnell.com/blog/archive/2006/09/15/4587.aspx