Unable to add computer account to Session Directory group - Server 2K3

[ChrisD.]

I am trying to add three TS Servers to the Session Directory group on the Licencing Server in order to set up Session Directory on an existing NLB (in lusrmgr.msc).

However, I receive the error when I click on OK (after it has checked names and found the machine account):

Information returned from the object picker for object <computer name> is incomplete. The object will not be processed.

This happens when trying to add any computer to any group domain wide.

It is worth noting that the 2K3 member servers are on a NT4 domain.

 

[ChrisD.]

I think I have found a potential fix through trusty old google.

The text reads:

When you perform the subject action, the Terminal Services Session Directory service DOES NOT keep track of sessions on terminal servers and DOES NOT reconnect users to existing sessions.

When you attempt to add a terminal server to the Session Directory Computers local group, you receive:

Information returned from the object picker for object <Computer Name< was incomplete. The object will not be processed.

This behavior occurs because the Windows Server 2003 Terminal Services Session Directory service requires that all terminal servers that use the Session Directory service must be added to the Session Directory Computers local group, but you cannot add computer accounts to groups in Windows NT 4.0.

To resolve this issue:

1. Download and install Windows Server 2003 Service Pack 1 (SP1).

2. Open a CMD.EXE Window on the Windows Server 2003 SP1 session directory server.

3. Type the following command and press Enter:

REG ADD "HKLM\System\CurrentControlSet\Services\TSSDIS\Parameters" /V SDOnNT4Domain / T REG_DWORD /F /D 1

4. Shutdown and restart the Windows Server 2003 SP1 computer.

Can anyone clarify what that registry change does exactly?

 

[ChrisD.]

The above solved the issue.