Comments on: Enabling Multiple Concurrent Remote Desktop Sessions on Windows XP SP3

By: Toby

Toby — Fri, 04 May 2012 18:54:45 +0000

I found all that talk of “3 possible locations” confusing because there are only two listed. But I followed the instruction (XP SP3) and it’s working well for me.

By: Rafsys

Rafsys — Wed, 22 Feb 2012 20:08:17 +0000

I was recently locking for this, because I have a Linux (debian 6) inside in what I use VirtualBox (Oracle) for virtualize some VMs like Linux, MaC OS and Windows. Now everythin is working well, but some users in the Network are using Linux too, and today some of them wanted to run just one aplication that runs only in Windows… ….. ….. no more explications,,,,,,, the solution is the following:
1.- Start the Windows VM, and pres F8, in safe mode or prompt
2.- rename in /windows/system32/dllcache the file termsrv.dll for another like termsrv.dll_ok
3.- rename in /windows/system32/ the file termsrv.dll for another like termsrv.dll_ok
4.- Copy (the patch previously downloaded and untar it) its name is the same termsrv.dll (that is why i renamed the originals one before)
5.- continuing in safe mode or system simbol, run the reg patch, ts_concurrent_session_patch.reg, it can in many ways, but I prefer this, staying in the path of the file ts_concurrent_session_patch.reg just type: start ts_concurrent_session_patch.reg (remenber I am in safe mode or simtem symbol) after that a message popup apears, accept it.
Restart the virtual machine Windows.
In windows, login as administrator, create some users and add them to remote desktop group, after that right clik over MY PC, properties, remote, remote desktop, select remote users (notice that here apears the users tha You already created before).
Finally, I just connect from others Linux PC with rdesktop (in each case, the users don’t do anything, because I added in one command line every information as user, password, etc.

I apreciate you for this post, because was usefull… and perdon for my basic english.

From Perú
Rafael

By: AET

AET — Tue, 07 Feb 2012 11:16:32 +0000

Worked fine on a Virtual Machine XP Pro 2002 Sp3 but only after being in Safe mode logged in at the console. Otherwise it was always in use, even with Terminal Service turned off.

By: icaq

icaq — Thu, 26 Jan 2012 15:14:40 +0000

Hi,

thanks for the patch!

I had the problem that “AllowMultipleTSSessions” in the registry was always reset to 0 on reboot so I placed batch file in the computer startup folder to auto import the registry file on computer start!

icaq

By: Junaid Abrar

Junaid Abrar — Wed, 04 Jan 2012 05:04:27 +0000

Great! it works for me 1st attempt…. without going into the safe mode

By: iXX

iXX — Thu, 24 Nov 2011 17:35:04 +0000

Hi!
Work great!
I Need some How-To:
After computer starts, it autologon one user to local work.
How to start and lock another – remote – session, in the same time, for faster remote connection of the second user?
Is it possible?

By: Adrian

Adrian — Mon, 14 Nov 2011 08:57:39 +0000

Hi there this worked great, Thanks!
What i want to know is if it is possible to allow a single user to log in multiple times? At the moment User1 from PC1 and User2 from PC2 to the XP Terminal works fine. But i need User1 from PC1 and User1 from PC2 to be logged in. Is this possible?

Thanks you

By: Jason

Jason — Mon, 07 Nov 2011 11:23:13 +0000

I can confirm as of Nov 7th, 2011, this still works in XP 2002 SP3* if done in safe mode, you have to replace BOTH files as stated, I also set them both as read-only as a precaution and so far it’s working perfectly

*Despite having SP3 installed, there are still some minor patches waiting to be installed from Windows Update, Phil could be referencing one of these as what prevents multiple TS logins.

By: MayBee

MayBee — Wed, 05 Oct 2011 01:58:40 +0000

Long ago, during SP1 rollout, it was recommended to boot XP in Safe Mode. Then, you will be able to replace termsrv.dll in ALL 3 locations identified in above instructions (do not overlook the dllcache folder specified in the June 7, 2008 update). Once you rename & replace termsrv.dll in all 3 locations, reboot the computer in normal mode and give your new multi-session enabled system a try.

By: Phil

Phil — Tue, 04 Oct 2011 15:32:18 +0000

This does not work any longer. Microsoft issued a patch for this work around because XP is only officially supposed to support one remote connection. Either use XP SP1 or lower, or buy Windows Server.