Microsoft Project 2010: Powershell Cmdlets for Project Server PSI
Mike Shughrue – one of our top Project consultants just published samples on how to use PowerShell in Project 2010 to call PSIs: https://code.msdn.microsoft.com/pj14PowershellPSI
Why would you care? Want to expose additional PSI objects? Then grab this and follow the “theme”. Your IT friends would love you :) As they e.g. can bulk edit or publish all project using a command line :)