Subject Re: Digital Signature Problems From <rich@autotraker.com> <<rich@autotraker.com>> Date Sun, 10 Mar 2019 14:30:24 -0400 Newsgroups dbase.getting-started I've also been unable to sign a PLUS 12 EXE with the built in runtime (RTEXE) I don't get an error but the EXE just doesn't run. I think it’s a BUG in the RTEXE. Any alteration to the EXE seems to trash it. A regular runtime EXE does however work. I'm using a pfx certificate from https://www.emailarchitect.net/live/getpfx.aspx signtool.exe sign /v /f MyCert.pfx /p PASSWORD /t http://timestamp.comodoca.com/authenticode C:\MyApp\App.exe Rich... "Matt Milner"  wrote in message news:frGwmgp1UHA.700@ip-AC1E04A7... I am using dBase Pro 12.  I am signing and time stamping my programs using Microsoft's signtool.exe.  Some of my programs work fine before signing but stop working after signing. Any ideas?