No. On WM 6.5.3 Microsoft has hardcoded the sizes of both the Top Task Bar, aka. Menu Bar, Start Bar (to be smaller than previous) and the Bottom Menu Bar (to be larger than previous). They have also moved the Window Start Icon and the OK/x button from the top bar to the Bottom Menu Bar. These are changes are not reversable. There is no 'previous compatability mode'. Problems that are caused by this will Microsoft change have to be met by changes in the source code of the application on the temrinal. Please note also, that hiding the Top Bar no longer hides the Window Start Icon or the OK/x. This also has the outcome that having no bottom bar (ie. having no Menu on any form) prevents these items from being visible even if the Top bar is still there. All of these 'minor' changes require source code changes to overcome any incompatabilies.