Here is a tip for those that do not like the command prompt window for dooble starting up and staying on the desktop.
1. Left click on the Dooble program icon.
(2. Under the Program tab, delete the last charactor in the the Path and File Name box e) changing dooble.exe to dooble.ex
3. Select the Session tab.
4. At the bottom of the tab, check the Start Minimized.
5. Under the Program tab, add back the e in the the Path and File Name box changing dooble.ex to dooble.exe.
6. Close properties session.
7. Start Dooble.
You should not see the command prompt window as it is started.