>>you cannot open up any browser (chrome, firfox or ie7) in multiple desktops By the way you can shut down desktops without logging of by ending the "desktop" process in task manager.
While this will kill the process, it will leave the child processes (Explorer.exe, for each additional desktop, as well as the processes that it starts) running, as well as the desktops that were created. To see this, simply work with a second desktop for a while, leave the apps running, and kill Desktops.exe. Then launch it again and you will see the same desktop, as well as the same applications, still running. This is why a log off is suggested to get rid of the additional desktops that have been created. From the Desktops utility page at http://technet.microsoft.com/en-us/sysinternals/cc817881.aspx: "there is no way to delete a desktop object, so Desktops does not provide a way to close a desktop, because that would result in orphaned windows and processes"