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Multiplying RDP Connections PDF Print E-mail
Written by Edward Prevost   
Thursday, 31 May 2007
Ever wanted to remote into your MCE2005 or XP Pro machine without having to log everyone and their mother off? I know I have, Well here is a nice windows HACK to get you all set; proceed with caution...

  1. Print these directions so that you have them to work from.
  2. Restart your computer in Safe Mode
  3. Turn off/disable Remote Desktop Connection (RDC) and Terminal Services
    1. Right click My Computer
    2. Select Properties
    3. Click on the Remote tab at the top of the window
    4. UNCHECK the box next to, “Allow users to connect remotely to this computer
    5. Click OK
    6. Go to Start -> Control Panel -> Administrative Tools -> Services
    7. Find Terminal Services in the list
    8. Right click on Terminal Services and click Properties
    9. In the Startup Type box, select Disabled
    10. Click OK to close the window
  • Next you will replace the current version of the Terminal Services DLL (termsrv.dll) with an unrestricted version from a previous release of Terminal Services. (SP2 Beta package)
  1. Here is a copy of the Terminal Services DLL - Save it to your PC
  2. Using a file manager like Windows Explorer open C:\Windows\system32\dllcache
    (Make sure you have hidden and System Folders Viewable)
  3. Rename the file termsrv.dll to termsrv_dll.bak.
  4. Copy the downloaded termsrv.dll file (the one you just downloaded from the web) to C:\Windows\system32\dllcache
  5. Open the C:\Windows\system32 folder
  6. Move the file termsrv.dll in C:\Windows\system32
  • Now we can edit the Windows Registry to enable more than one RDP connection.
  1.  Go to Start -> Run and type regedit
  2. Click on the HKEY_LOCAL_MACHINE branch then go to File -> Export...  and make sure Selected Branch is HKEY_LOCAL_MACHINE
  3. Name this .reg file as HKLocalMachineBU and save it to yoru PC
  4. Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\Licensing Core
  5. Add a DWORD Key named EnableConcurrentSessions and give it a value of 1
  6. Close the Registry Editor window
  7. Go to Start -> Run and type gpedit.msc
  8. Browse to Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services and double click Limit number of connections
  9. Select the Enabled button and enter the number of connections you would like to enable….at least 2 a maximum of 3.
  10. Restart Windows
  • Now when the PC restarts we finalize the RDP HACK, enabling RDCs.
  1. Right click My Computer and select Properties.
  2. Click on the Remote tab at the top of the window
  3. CHECK the box next to, “Allow users to connect remotely to this computer
  4. Click OK
  5. Go to Start -> Control Panel ->Administrative Tools -> Services. Select Terminal Services from the list and double click it or right-click -> Properties. Set the Startup Type to Manual.
  6. Restart Windows

This tutorial is provided AS IS. Please do not change alter or play with your registry settings if you are in the least bit uncomfortable.
Last Updated ( Thursday, 31 May 2007 )
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Disclaimer: All thoughts and opinions expressed here are not necessarily reflective of Covenant E-design, its employees, clients or affiliates.