I created a setup project for my vb.net desktop app. I have removepreviousversion set to true. My understanding of this setting is that it is supposed to do the uninstall as part of the install procedure if the versions are updated. Currently, the setup just displays a dialog box telling the user to go to the control panel and do an uninstall of the previous version before the installation can continue. I am using vs.net 2003 and installing on computers running windows 2000 sp4. Any help????