In the case where the installer itself has to show a Liscense / Welcome dialog, we want to begin downloading the content then show the License dialog, while continuing to download the content. If the License is rejected, we should delete the downloaded content. If the License is accepted before the download is complete, then we realize the download progress dialog at whatever point it is at. If the download has completed before the license is accepted, then we can skip the download progress dialog and go strait to the install progress dialog. (unless and untill these two progress dialogs are combined)