Couchbase 4 Windows (x64) Silent Install Fails

We had this issue with the Couchbase 3 installer on Windows also. A silent install fails from either administrative console window or a deployment service running as SYSTEM. I am running: couchbase-server-community_4.0.0-windows_amd64.exe /s /f1cbserver.iss /V"/L*V %PWD%\cbserver_install.log"

Judging by the install log, it looks like some redirection issue (it thinks it’s installing to Program Files (x86)). I receive no errors and nothing gets installed.

The log is a bit large, but I can post it if needed. It should be very easy to reproduce.

This sounds like the issue I’m experiencing using the Windows installer. Found it doing some searching based on the contents of the log file: