Sometimes you need to the complete public key of an assembly instead of the public key token. For example when you want to use the InternalsVisibleTo attribute when the target assembly is signed. The easiest way of doing so is using the Strong Name Tool or sn.exe with the –Tp parameter. So from .NET 2.0 command prompt do:
sn -Tp <<your assembly>>
And if you want to add an Open .NET 2.0 SDK Command Prompt here shortcut menu option to the Windows Explorer check this tip.