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

If you can load the assembly into a .NET application, you can do:

typeof(SomeTypeInTheAssembly).Assembly.FullName

If you cannot then you can use ildasm.exe and it will be in there somewhere:

ildasm.exe MyAssembly.dll /text

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.

Late to the party, but googled some more about this issue and found this page:

• http://www.pvle.be/2010/04/getting-an-assemblys-strong-name-with-powershell/

He describes a powershell function that can do this. So. I've never ever used powershell before, but I thought I'd give it a try:

C:\> cd PATH_TO_ASSEMBLY   
C:\PATH_TO_ASSEMBLY>powershell
Windows PowerShell
Copyright (C) 2009 Microsoft Corporation. All rights reserved.

PS C:\PATH_TO_ASSEMBLY> [System.Reflection.AssemblyName]::GetAssemblyName('System.Data.SQLite.dll').FullName
System.Data.SQLite, Version=1.0.66.0, Culture=neutral, PublicKeyToken=db937bc2d44ff139
PS C:\PATH_TO_ASSEMBLY>

This does the trick mentioned in other answers by using code, except you don't have to create a project to do this - just type away at the prompt ;)