I was using Microsoft's SignTool to sign my executables with my code signing certificate using the following command line call:
signtool.exe sign /q /f "cert.pfx" /p "pfxpassword" /d "File Description" /t http://timestamp.verisign.com/scripts/timstamp.dll "file2sign.exe"
My code signing certificate will expire in November of this year. From what I understand, if I renew it, I will be issued a new code-signing certificate. So in that case my question is, what will happen to the software that was already signed with my current certificate -- do I need to resign it?