Windows Applications code signing process 1. Request security certificate with code signing request (CSR) At BYU go through BYU account on digicert.com These instructions worked for me: https://www.ssltrust.com.au/blog/code-signing-certificates/ 2. Wait for certificate to be approved and sent. (As of Feb. 2018 Jason Renfro at OIT is the one who approves.) 3. Export as .PFX, per Trevor DeVore's instructions at http://revolution.screenstepslive.com/s/revolution/m/10695/l/563368-exporting-your-digital-certificate-to-pfx-format 4. Download signtool.exe for signing the application. http://revolution.screenstepslive.com/s/revolution/m/10695/l/112948-installing-signtool-exe https://stackoverflow.com/questions/31869552/how-to-install-signtool-exe-for-windows-10 5. Sign the application with signtool.exe: http://revolution.screenstepslive.com/s/revolution/m/10695/l/563370-signing-with-signtool-exe Here's the command that succeeded for me: "C:\Program Files (x86)\Windows Kits\10\bin\x86\signtool.exe" sign /f "C:\Users\dna3\Dropbox\LCU_cert\LCU_codesigning.pfx" /tr http://timestamp.digicert.com /td sha256 /v /p h@msterl@nd "C:\Users\dna3\Dropbox\Windows_Personal\LiveCode University.exe" 6. Create the installer with INNO Setup, then sign the installer. http://revolution.screenstepslive.com/s/revolution/m/10695/l/563371-signing-installers-you-create-with-inno-setup Here is the command line call I used in INNO Setup: "C:\Program Files (x86)\Windows Kits\10\bin\x86\signtool.exe" sign /f "C:\Users\dna3\Dropbox\LCU_cert\LCU_codesigning.pfx" /tr http://timestamp.digicert.com /td sha256 /v /p h@msterl@nd $f