Do you have to run Remote Desktop to access Terminal Services?
Solution 1:
No, there is no need for the client to start Remote Desktop to run TS applications.
Running TS application is very transparent: the client has to open an .rdp file which starts automatically the required application on the same desktop. The only difference would be the visual appearance of a window (for example on my Windows 7, TS applications from Windows 2008 do not have Windows Aero style). So if you put a shortcut to the MYOB .rdp file in start menu, it will be enough.
Note: when starting TS application for the first time, domain username/password credentials will be asked. If they are remembered, starting a TS application the next time will be as easy as starting an application installed locally.