You wouldn’t run the msiexec command against a .EXE file, it only deals with .MSI files.
You’d also need to find the command lines to make the installation silent. For an MSI package that’s generally the
/qn parameter but it can vary on EXE installers.
Likely msiexec is trying to present an error message to the effect of ‘the EXE file is not a valid Windows Installer package’, but because we run as LocalSystem the error message is not presented on the user’s screen. Now msiexec is stuck ‘running’ because it is waiting for a hidden error message to be acknowledged.
You’ll need to kill the ‘msiexec.exe’ process before the action can move on to Failed.