We decided to use the minimumRequiredVersion in our clickOnce application manifest, and now when we try to rollback to a previous version when the user launches the applicat
You can use Mage.exe to update your deployment manifest (.application file extention) to a higher version, and select the application manifest of the previous version. Like chilltemp said, you still have to go to a higher version, but you don't have to re-deploy your code.