As far as I know, no.. But it'll take 15 minutes to remove Presentation Server and reinstall it. From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Beckett, William (Bill) Sent: Wednesday, December 05, 2007 2:46 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] PS 4.0 and shadowing A server was built here but it appears that enable shadowing was not selected upon install. I have heard that there is no way to change this, other than reinstalling PS 4.0, is this accurate? Is there no reg hack that can bring back shadowing on a Citrix server? 2003 is the OS