From Microsoft....
Windows Small Business Server 2008 (Windows SBS) Premium includes software to run on a second server. By enabling the Terminal Services role on the second server, users can access a terminal server from within a Windows SBS 2008 network or from the Internet. Terminal Services in a Windows SBS 2008 network provides the following benefits:
You can't install the TS Server Role on your SBS. So in order to install Terminal Server the Role must be on a second server. You would install TS Licensing on the SBS Server in order to server out TS CALS. On this server you could support any number of users simultaneously that your hardware can handle. You will Activate the TS Licensing Service then add CALS. I would Suggest USER TS CAL, you must purchase 1 for each named user that will be logging in to the Terminal Server.
Remote Destop on your SBS Server can support 2 remote users, however it is important to note that a server without the TS Server Role is not a Terminal Server. TS Servers change Windows so that it is capable of running users separately on the box handling certain registry and some isolation between users. It is not recommended to RUN applications on a server using Remote Desktop.
Hope that helps..
Richard
