How do I find the fully qualified name of an assembly?

This is a shameless copy-paste from I Note It Down and is a simple way to get the FQN for the project output:

Open Visual Studio
Go to Tools –> External Tools –> Add
    Title: Get Qualified Assembly Name
    Command: Powershell.exe
    Arguments: -command "[System.Reflection.AssemblyName]::GetAssemblyName(\"$(TargetPath)\").FullName"
    Check "Use Output Window".

The new tool appears under Tools –> Get Qualified Assembly Name. When the menu item is selected, the assembly name is given in the output window.