I was reading What happens when a code signing certificate expires - Stack Overflow and wondering about a more solid answer. The answer provided was more about setting up y
Time stamping is a free service -- it's really only a trusted provider verifying that you signed the file at a given time. Verisign's timestamp service is the standard one. The final example in the help for Set-AuthenticodeSignature demonstrates how to use it.
Lee Holmes [MSFT] Windows PowerShell Development Microsoft Corporation