I searched for this, but I didn't find anything resembling it...
Pardon my ignorance if this is sheer fantasy.
In Windows, the Desktop is a special folder in the profile folder of the logged-on user.
In a standard windows install, it is quite easy to redirect the folder in regedit in
HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders - Desktop.
We routinely redirect folder paths that would normally be pointing toward the user profile folders so that they go to subfolders in the app directory; and I believe that we also add temporary registry entries, although I'm not sure of the details.
Can this be used to redirect the Desktop folder to a folder on the flash drive?
That could potentially add a portable desktop functionality to the menu without a lot of complex coding. Or maybe it can be done as a separate app, using a simple NSIS launcher.
Does this make sense, or am I just loony?