Quickly sign your assembly with strong name using VS 2005
when using Visual studio 2003 to sign an assembly you used to generate the key using the snk command utility and override the Assembly.info file manually to set the signing information .
In Visual Studio 2005 you can easily do this with fewer easy steps :
1- Right click on the project which need to be signed and choose properties.
2- Choose Signing from the left panel.

3- Check the ‘Sign the assembly ’ checkbox and choose browse if you already have a strong name key or new if you want to generate a new key.
4- A dialog will pop up type the key name and whether you need to protect it with password or not.

5- Save the settings and build your solution again.
Enjoy :)