I noticed a few days ago that the PowerShell ISE is an available feature on Windows Server 2012 Release Candidate when running the Server Core Installation (no GUI):
Does that mean the PowerShell ISE can run on Server Core in Windows Server 2012 unlike in Windows Server 2008 R2? Let’s find out.
The installation takes a long time and then you’re prompted to restart when it’s complete:
Finally when the restart is finished and you log in, Server Manager will be loaded and you’ll discover that you now have what’s called “Minimum Server Interface”:
So the answer is no, the PowerShell ISE can’t be installed on “Server Core” in 2012.