Retrieve the public key token for a .Net assembly

This is one way to retrieve the public key token for a strongly named .Net assembly:

sn -T C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.Data.dll

Result:

Microsoft (R) .NET Framework Strong Name Utility  Version 2.0.50727.42
Copyright (c) Microsoft Corporation.  All rights reserved.

Public key token is b77a5c561934e089