Dynamics GP Remote Access

I have a few users that need remote access to Dynamics GP.  I was going to use a VPN and laptops with GP to connect them, but I saw a few posts here that warned against it.  I can resort to using Remote Desktop (I already have a Windows 2003 Terminal Server with GP installed), but I would like to give them RDP shortcuts that automatically launch GP.  Using the Remote Desktop 'Programs' tab I entered the program path and name as: "C:\Program Files\Microsoft Dynamics\GP\Dynamics.exe" Dynamics.set, but this gives me an error, "This launch file is invalid".  How can I get GP to launch automatically through Remote Desktop?  Thanks!