Mail connector and Directory Connector successfully install but upon installing the Free Busy Connector the user is prompted with a Powershell pre-requisite failure during the install wizard.
Local OS or Regional and Format settings are not set to English.
Ensure that English versions of the underlying Windows OS has been used and set the Regional Settings to US English to resolve this problem, the installer should continue once these settings are used.
Please see the attached example screenshots of the correct OS settings, you can check the OS language by looking at the properties of Winver.exe.
