Windows 10: Signtool errors with a file not found even though the file exists.

Recently we've rebuilt a Azure VM we use to build installers with Inno Setup with signing. All our installer generation processed worked a few days ago.Now we are getting an error a file doesn't exist even though it clearly exists. We are thinking this is a type of access or permissions issue?Here is the command we are using:C:\Program Files x86\Windows Kits\10\bin\10.0.26100.0\x64>signtool sign /debug /fd SHA256 /tr "http://timestamp.acs.microsoft.com" /td SHA256 /dlib "C:\Installs\Agent\Extras\tsc-dll\Azure.CodeSigning.Dlib.dll" /dmdf "C:\Installs\Agent\Extras\metadata.json" "C:\Install

:)

 

0x800700C1 in SignTool

hi

i hvae made a 32 bit game but im having trouble signing the sertificate off the .appx file

this is the error that i get

C:\Program Files (x86)\Windows Kits\10\bin\10.0.17134.0\x86>SignTool sign /fd SHA256 /a /f signingCertx.pfx C:\projectx\snake\PackageFiles\snake.appx

Done Adding Additional Store

SignTool Error: SignedCode::Sign returned error: 0x800700C1

For more information, please see https://aka.ms/badexeformat

SignTool Error: An error occurred while attempting to sign: C:\projectx\snake\PackageFiles\snake.appx

i have used desktop app converter to make the EXE into an APPX

i have done all the steps that has brought me to this code:

SignTool sign /fd SHA256 /a /f signingCertx.pfx C:\projectx\snake\PackageFiles\snake.appx

but im stuck coz all i get is the error mentioned above after i type the code below :

SignTool sign /fd SHA256 /a /f signingCertx.pfx C:\projectx\snake\PackageFiles\snake.appx

my certificate has no password so i didnt include the /p

can you help me please

it would be much apritiated

i run windows pro

i have the windows SDK installed

also i have visual studio 7 that makes it easier

thank you

 

Saves log files ?

You can either read the files in Windows or my preferred method is.....

Download CCcleaner from here...........

http://www.piriform.com/ccleaner

You can then run cleaner, you will see the log files listed, then if you right click you can save as a text file and then have a read. You may also get an "error reporting" log listed seperatly.

 

How to sign these custom proprietary file formats using Microsft signtool?

Hi KANTHETI,

Welcome to Microsoft Community.

I'm Hahn and I'm here to help you with your concern.

I can help you with some information about signing files using Microsoft signtool.

According to the documentation [Using SignTool to Sign a File - Win32 apps | Microsoft Learn], signtool is a command-line tool that digitally signs files, verifies the signatures in files, and time stamps files. You can use signtool to sign any file type, as long as the file format supports digital signatures.

To sign a file using signtool, you need to have a certificate that identifies the signer. You can obtain a certificate from a certification authority (CA), or create your own self-signed certificate. You can store the certificate in a Personal Information Exchange (PFX) file, or in a certificate store on your computer.

The basic syntax for signing a file using signtool is: `signtool sign [options] file_name` where `options` are the parameters that specify the certificate, the digest algorithm, the time stamp server, and other information.

For more information about signtool, see [SignTool - Win32 apps | Microsoft Learn]. I hope this helps you with your task.

If you have more questions, SignTool issue is not supported on the Microsoft Answers forum. It is more suitable for publishing on Microsoft Learn (English only), you can click on "Ask a question", there are experts who can provide more professional solutions in that place.



Here is a link: Windows 11 - Microsoft Q&A to the forum where you can raise specific scenarios and share your idea to help solve the problem.



I won't be able to help you, but I'll leave that question open in case one of our amazing volunteers has ideas for you.



Your Sincerely

| Microsoft Community Support Specialist