How to join a Server Essential to existing Domain using powershell? (technet article is wrong)

In the article Install and Configure Windows Server 2012 R2 Essentials, the procedure to join the server to an existing domain is described as:

Start-WssConfigurationService –Credential <Your Credential>

However,

Start-WssConfigurationService

does not have a parameter "Credential" and returns with an "Invalid argument" error message.

Now, what is the correct procedure to join the domain?

rosch