eDirectory 9 Windows install fails showing the text "error" in all fields

The eDirectory Windows installer shows a value of "error" in the input fields.

If the first screen is manually filled in the second screen shows "error" for the port values.  These fields cannot be edited so there is no way to proceed with the installation.

This was caused by the Windows Execution Policy set to Restricted for Powershell.  The new eDirectory installer uses Powershell in the background.  This setting will cause it to fail.

To resolve the issue type the following in a Powershell session running as Administrator.
Set-ExecutionPolicy RemoteSigned

To verify this setting type the following:
Get-ExecutionPolicy