Preparing a app for distribution I am stuck on a couple of point, any insights would be appreciated.

The first question is how to make the desktop full size when the .exe is invoked. It is saved full size, but only covers the top quarter of the screen when run from the distributed .exe. The second question is how to make the desktop not show any toolbars etc when the distrib app is run (now they are there but disabled). Actually I would prefer to have NO desktop but I believe this is not possible.