ClickOnce: Changing the Deployment Server

1.  Deploy application to new server.
2.  Run Mageui.exe and open up the .Application file (old server).
3.  On the name tab (old server), update the version to the same version you just deployed to the new server.
4.  Click on the Deployment options (old server), and update the Start Location to the new server.
5.  Click on Application Reference and choose select manifest (old server)- navigate to the manifest on the new server and select it.
6.  Save - It will ask you your signing options - if you application is signed, simply choose the certificate that you are currently signing with (old server).  The next time the users go to use the application, the update files will come from the new server location.  After they pick up the updates from that new server location at least one time, the old server can be killed and the application will know to look for updates at the new server location.