Changing viewing modes while in Remote Desktop Session

I like Coherence. Makes me feel like I am using a Mac when I am not. I have been able to set up the VM so that I can access it via RDP over a VPN (alphabet soup). My problem is that if I forget to change the VM to Window mode prior to leaving, when I open the Remote Desktop session I get a desktop and what ever programs I left open. The Start button and Taskbar are not visible.

I tried changing Parallels' preferences to toggle Coherence mode using only keys available on my iPhone RDP app, like CTRL+ALT+Return, but that does not seem to work. There is no keystroke available to toggle Window mode on.

Can you think of a way to toggle to Window mode remotely?