DOCUMENT:Q186482 11-DEC-2001 [winnt] TITLE :Terminal Server Modifications to NetDDE PRODUCT :Microsoft Windows NT PROD/VER:WinNT:4.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT Server version 4.0, Terminal Server Edition ------------------------------------------------------------------------------- SUMMARY ======= When NETDDE starts in Windows NT Server or Windows NT Workstation, NETDDE registers the computer name on the network with the NetBIOS designation of [1fh]. To register this name for use by NETDDE, the computer name must be unique. This is normally not a problem because computer names must be unique in any case. However, NETDDE in Terminal Server registers as [1fh] with the user name rather than the computer name. This makes sense because all the users connected to the Terminal Server will use the same computer name, making NETDDE impossible. However, registering NETDDE with the user name introduces a new requirement that all users on the network use unique user names if NETDDE is going to be used. If NETDDE is not used, this should not be a concern. Users who use the Terminal Server client to connect to multiple sessions will find that NETDDE will only start in the first session if they try to use the same user name for multiple sessions. Additional query words: ====================================================================== Keywords : Technology : kbWinNTsearch kbWinNT400search kbWinNTSsearch kbWinNTS400search kbNTTermServ400 kbNTTermServSearch Version : WinNT:4.0 Issue type : kbinfo ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.