Update - I've found a bug and fixed it. Now you can call this script from PE in OS Refresh scenario as well. The well known name in Deployment world, Johan Arwidmark wrote an excelent article on adding remote control to MDT/SCCM Boot...

Recently, I asked Michael Niehaus would it be a good idea to send Events, that normally go to EventShare, to SCCM as a status message. Michael's response was that the challenge was Windows PE. But still, if you're using MDT Scripting framework for...