Using PowerShell ISE on Exchange Edge Server

I need manage edge servers from PowerShell ISE to create a script. I tried the steps mentioned on TechNet, but they give an error due to Kerberos not being usable on a workgroup computer.

Any ideas how I can manage to do this without much tinkering?

TechNet Article that doesn't work with Edge server: http://technet.microsoft.com/en-us/library/dd335083(v=exchg.150).aspx