I'm trying to get a Team Build to change the specific ClickOnce configuration. I want to build a test version of my application that doesn't try and update from its web deployment location. I thought I could do this by setting <UpdateEnabled>False</UpdateEnabled> in my build configuration file - I've had a look through the various targets files, and I thought this should work. However, I still end up building an application which refuses to install because it can't access its (fake) deployment location. I assume that UpdateEnabled is not set in GenerateDeploymentManifests, but I can't see why that would be the case. Can someone help me with this? Specifically, I'd like to know - What I'm supposed to do to get this to work - How I should be debugging this (it's running on a build server, which isn't helping) Thanks, Ian.