Windows Presentation Foundation
A part of the .NET Framework that provides a unified programming model for building line-of-business desktop applications on Windows.
2,772 questions
Signtool.exe Sign returned error: 0x80090027 The parameter is incorrect.
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Markus
16
Reputation points
I want to create an installer for my desktop WPF application.
I purchased a code signing certificate from Sectigo. I used openssl to get a pfx file from it, and it seems to install just fine to my pc, and certlm shows all the properties correctly.
But when I try to use it for signing my desktop apps with ClickOnce or MSIX installer, I get an error message saying
"SignTool Error: SignedCode::Sign returned error: 0x80090027
The parameter is incorrect."
Also when I try to use signtool.exe directly in signing a dummy exe, I get the same error message.
What could be the reason for the error? What are the situations where that error code and message are returned?
{count} votes
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(291.2, 11%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHL%3C/text%3E%3C/svg%3E)
Hui Liu-MSFT 48,531 Reputation points Microsoft Vendor2022-12-01T02:55:42.833+00:00 Hi, @Markus . Welcome Microsoft Q&A.
How did you sign the app? Are there any signing steps? And could you provide the sample pfx file? -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(73.60000000000001, 89%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJW%3C/text%3E%3C/svg%3E)
Jeremy Wohl 0 Reputation points2023-04-13T03:57:48.5266667+00:00 Were you able to resolve this? I have the exact same situation and problem and haven't been able to find a solution.
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