We couldn't find where Microsoft documents how a terminal server is added to Small Business Server 2008's Remote Web Workplace. Charlie Russel graciously provides the details on how it's done:
- Make sure that the Terminal Server is in the SBSServers OU (the default will put it in the SBSComputers OU).
- Open dsa.msc, navigate to MyBusiness->Computers container to find the SBSServers and SBSComputers OUs.
- Drag the TS into the SBSServers OU. Ignore the warning.
- Open Regedit, and navigate to HKLM\SOFTWARE\Microsoft\SmallBusiness.If there is a RemoteUserPortal key, open it. If it doesn't exist, create it.
- Create a new multi-string value (REG_MULTI_SZ) called TsServerNames.
- Edit the multi-string value, adding the exact server names of your terminal servers, each on its own line.
- Close regedit, and stop and restart RWW.