You'll probably find that Adobe Downloader is set to run at startup. There may be an icon for it in the system tray (bottom right). Not sure about the next bit... you may be able to disable it by clicking on the icon and changing the preferences, or by removing it from the Startup folder, or by running msconfig from the C> prompt and choosing which apps are loaded at bootup.
Need help from someone else here because I don't have it.