Signing in Inno Setup fails with "Sign Tool failed with exit code 0x1"

Question

I have Inno Setup script, where I need to use the SignTool=signtool, which is configured properly and worked in past.

But it's failing when I try to compile with the following error:

Sign Tool failed with exit code 0x1.

Answer 1

You didn't provide us any information that we can use to debug your problem.

So I'm posting generic instructions to debug issues with a "sign tool".

1. Try command-line compiler (ISCC.exe). It will preserve a full signtool.exe error message in the output:

   

2. Or temporarily prefix the sign tool command with cmd.exe /k to preserve its output even when compiling in Inno Setup GUI Compiler. E.g.:

   cmd.exe /k C:\path\to\signtool.exe sign /f C:\mykey.pfx $f
   

   

   Note that if you use a path to signtool.exe with spaces, due to the way cmd works, you have to wrap not only the path itself to double quotes, but also the whole command:

   cmd.exe /k ""C:\path to signtool\signtool.exe" sign /f C:\mykey.pfx $f"
   

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See also signtool fail with Inno Setup with exit code 0x1.