title: Code Signing Wix installer in the pipeline using azure key vault
body: <p>I'm trying to code sign a Wix installer package that was developed by another company (I have limited knowledge of Wix).</p>
  <p>As a proof of concept piece of work we did I signed the MSIs and EXE using WixSharp.DigitalSignature as below, which seemed to work with a self signed certificate</p>
  <pre><code>project.DigitalSignature = new DigitalSignature()
     {
        PfxFilePath = Resources.CertificateUri,
        HashAlgorithm = HashAlgorithmType.sha256,
        Description = Resources.BootstrapperProject,
        TimeUrls = new System.Collections.Generic.List&lt;Uri&gt;() { new Uri(&quot;http://timestamp.digicert.com&quot;) }
     };
  </code></pre>
  <p>But now the time has come to implement with a proper certificate from GlobalSign it seems the above option isn't now possible as we now have to store the certificate in Azure Key Vault.</p>
  <p>We have tried signing the MSIs and EXEs with AzureSignTool through the pipelines but when running the installer I'm always getting the error &quot;0x80070001 - Incorrect function&quot;.</p>
  <p>The log file outputs the below information:</p>
  <pre><code>[0ADC:1034][2021-12-21T11:00:53]i320: Registering bundle dependency provider: {0315ab7d-04da-4a77-8536-fa0e0211c531}, version: 1.0.0.124
  [0ADC:1034][2021-12-21T11:00:53]i371: Updating session, registration key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{0315ab7d-04da-4a77-8536-fa0e0211c531}, resume: Active, restart initiated: No, disable resume: No
  [1710:10C8][2021-12-21T11:00:53]i336: Acquiring container: WixAttachedContainer, copy from: C:\Users\Administrator\Desktop\DigiView Installer.exe
  [1710:10C8][2021-12-21T11:00:58]i000: Setting string variable 'WixBundleLastUsedSource' to value 'C:\Users\Administrator\Desktop\'
  [1710:1720][2021-12-21T11:00:58]e000: Error 0x80070001: Failed to extract all files from container, erf: 1:2:0
  [1710:10C8][2021-12-21T11:00:58]e000: Error 0x80070001: Failed to wait for operation complete.
  [1710:10C8][2021-12-21T11:00:58]e000: Error 0x80070001: Failed to open container.
  [1710:10C8][2021-12-21T11:00:58]e000: Error 0x80070001: Failed to open container: WixAttachedContainer.
  [1710:10C8][2021-12-21T11:00:58]e312: Failed to extract payloads from container: WixAttachedContainer to working path: C:\Users\ADMINI~1\AppData\Local\Temp\2\{4D72E5B3-50AB-4B5D-BD93-BC559386F434}\5A4A1D973A87D89730BC20C9B805B7A384EF1383, error: 0x80070001.
  [1710:0F88][2021-12-21T11:00:59]e000: Error 0x80070001: Failed while caching, aborting execution.
  </code></pre>
  <p>There is very limited information online about this scenario, does anyone have a way forward for the particular problem I'm facing? Or can point me to some useful resources?</p>