Windows Server 2008: ServerManagerCmd error

I tried to query the roles on my Windows Server 2008 system with ServerManagerCmd.exe and received the error shown below in red.

C:\>ServerManagerCmd.exe -query

Error: Configuration was started by another administrator.That administrator must log in to complete that action before other administrators can install or remove additional features.

This tool opens up new possibilities for me and other IT administrators, but it did not work the first time I tried it. Google and the Microsoft forums did not help, so I tried to troubleshoot it myself. I read the "Server Manager Scenarios Step-by-Step Guide", but that did not help either.

Installing the PowerShell feature

I decided to install the PowerShell feature manually. A dialog reported that another process was in progress, although I could not see it. I clicked Yes, which resolved the issue. I did not capture a screenshot of that message.