PresentationHost.exe

There is some basic information here: http://msdn2.microsoft.com/En-US/library/aa970051.aspx. The rest should be considered "implementation detail".

XBAPs are ClickOnce applications. The .xbap manifest is the deployment manifest. (For standalone ClickOnce applicaitons, its extension is .application; the format is the same.) The deployment manifest points to an application manifest, usually with ".exe.manifest" extension. And, of course, there is the .exe itself. It's really not a standalone executable. (You can run it as such, but it will just quit right away.) PresentationHost uses System.Deployment.Application.InPlaceHostingManager to download the application's components and activate the application.

ChangoV.-MSFT at 2007-10-3 >