Signtool changes file size and corrupts file

Question

I've gotten a signing certificate for my company. We are trying to sign our installer.

We use signtool:

signtool sign /f %certfile% /p %certpass% /t http://timestamp.comodoca.com/authenticode file.exe

The output exe file is larger than the original.

When you try to run the installer file, you get an error dialog that says "could not initialize installation (CRC)"

Does anyone have any experience with resolving these types of issues?

Answer 1

It turns out that this issue was with some built in error checking done by the Wise Installer. The solution was to setup Wise with the PFX file details. The version we have (8.1) doesn't actually sign the files. We still needed to use signtool for that. But if we setup Wise to think it was going to sign the files, the CRC check didn't fail after signing.