This simple utility generates a Globally Unique Identifer (GUID). This is a long string that is guaranteed to be unique across the globe
You can use this GUID to uniquely identify a user, computer, program or any resource.
Once generated, the GUID can be used as a key field within a database. You can build functionality to check against this database to identify the item.
See SAMPLE.VBS for an example of how to generate the GUID through VBScript. You can also create the GUID through any programming language (eg. VBA, C++, .NET, etc. as log as you reference GUIDGenerator.DLL
Windows Server 2008,