How do I set Force Encryption using PowerShell

Question

I have to automate the task of setting Force Encryption (within Properties under SQL Server Configuration Manager, Network Configuration, Protocols for MSSQLSERVER). Do you know the PowerShell command to set Force Encryption to Yes? Any help would be appreciated.
I can see some TCP configurations with this command, but I cannot see the Properties:
$MachineObject = new-object ('Microsoft.SqlServer.Management.Smo.WMI.ManagedComputer');
$ProtocolUri = "ManagedComputer[@Name='" + (get-item env:\computername).Value + "']/ServerInstance[@Name='MSSQLSERVER']/ServerProtocol";
$tcp = $MachineObject.getsmoobject($ProtocolUri + "[@Name='Tcp']");$tcp;

Answer 1

I had to use a registry hack to change this value. Unfortunately, it is not the best way to make changes to an SQL server:
$RegKey = "HKLM:\Software\Microsoft\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQLServer\SuperSocketNetLib";
Set-ItemProperty -path $RegKey -name ForceEncryption -value "1";