title: signtool fail with inno setup : 0x80070003 - "Store IsDiskFile() failed"
body: <p>I'm getting a weird error whiles signing my software. I'm using inno setup 4.5.2.</p>
  
  <pre><code>Running Sign Tool command: signtool.exe sign /a /f cert.pfx /v /t "http://timestamp.verisign.com/scripts/timstamp.dll" /p pwd /d "Setup Label" "out\uninst.e32.tmp"
  SignTool Error: An unexpected internal error has occurred.
  Error information: "Error: Store IsDiskFile() failed." (-2147024893/0x80070003)
  Error in W:\path\installer.iss: Sign Tool failed with exit code 0x1.
  Compile aborted.
  </code></pre>
  
  <p>Command line seems pretty ok, it even work outside the inno setup compile. While setting the <code>SignedUninstaller=no</code> get me farther, it still make this error while trying to sign the output setup file.</p>
  
  <p>Now i've looked pretty much everywhere for that error code (0x80070003) and/or the message "Store IsDiskFile() failed". I have also tried with multiple version of signtool.</p>