Authenticode signed installer failing with UAC

I have an NSIS installer I created that I signed with an authenticode certificate from thawte. I sign the tool using the signtool.exe signwizard.

When I try to run the installer with UAC disabled, everything works fine.

When I try to run the installer with UAC enabled, I get an error message:

"File system error (-1073741819)."

And "Consent UI for adminstrative processes" crashes.

Has anyone else seen this?

That is means STATUS_ACCESS_VIOLATION, which probably means you have no privileges to view the file.