[There's a reason that Yoda is the unofficial mascot of SBS.  Size indeed matters not.] 2008 TS app server in a SBS 2003 network - THE OFFICIAL BLOG OF THE SBS "DIVA"
Tue, Mar 10 2009 7:04 bradley

2008 TS app server in a SBS 2003 network

If yuo need to have the TS show up as an app server and you are running a Windows Server 2008 in a SBS 2003 environment follow this:

1. In the Windows Server 2003 TS app mode, the following registry key is
set, (which is necessary for the SBS 2k3 server to detect the TS server in
LAN and list
in RWW portal)

HKLM\System\CurrentControlSet\Control\Terminal Server\TSEnabled = 1
HKLM\System\CurrentControlSet\Control\Terminal Server\TSAppCompat = 1

2. However, in the Windows Server 2008, the following registry key no
longer exists

HKLM\System\CurrentControlSet\Control\Terminal Server\TSAppCompat = 1

So, to temporarily work around this issue, we could manually add the
TSEnabled key into the Server 2008. Based on my test, it could allow user
to logon TS server
through RWW user portal and currently I did not investigate any side effect.

Related info:

Adding a Server Running Windows Server 2008 to a Windows Small Business
Server 2003 Network
http://technet2.microsoft.com/WindowsServerSolutions/SBS/en/library/eca2caef-d7be-41c1-8cf8-02cf8681e84f1033.mspx?mfr=true

 

If you are doing a TS to a SBS 2008 network, follow this blog post:

The Official SBS Blog : SBS 2008: How to Make Terminal Servers in Application Sharing Mode Appear in Remote Web Workplace:
http://blogs.technet.com/sbs/archive/2009/01/09/sbs-2008-how-to-make-terminal-servers-in-application-sharing-mode-appear-in-remote-web-workplace.aspx

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