light.exe on Windows 10 from Service: The Windows Installer Service could not be accessed

[wixbot]

I just upgraded our build box from Windows 7 to Windows 10 (x64) and light.exe stopped working when run from Windows Service. It raises "The Windows Installer Service could not be accessed". It still works with the same parameters if I run it interactively, but not from the service.

I tried

I tried

• Running service under different accounts (local admin, domain, local system)
• Registering/unregistering msiexec
• Changing service imagePath to SystemWow64 (from system32)

Result is always the same: works interactively but fails under windows service.

Any suggestions?

Originally opened by alexlakeside

[wixbot]

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Originally posted by robmen
Resolution set to support
Status changed from Untriaged to Resolved