After installing KB2667402 RDP is not working anymore on any of our DCs, member Servers are fine. What I found so far is that on DCs rdpcorekmts.dll is missing. After uninstalling KB2667402 there is again a file rdpcorekmts.dll but with an old version number and RDP is still not working. I have so far used the Windows Software Update Readyness Tool which found no missing or corrupt files. I downloaded KB2667402, stopped the RDP Service, manualy installed it again and restarted RDP Service -> rdpcorekmts.dll missing & RDP not working. I have NOT installed KB2667402 before SP1 like others on the forums who had similar symtoms. If you have any ideas please advise.

I have the same issue .. no rdpcorekmts.dll after install of KB266740 .. uninstalled, rebooted, downloaded and tried V2 of the patch, rebooted .. no change .. still missing.

My first idea would be the use sfc /scannow. Let us know if it repair your RDPMCP | MCTS 70-236: Exchange Server 2007, Configuring

are you downloading/applying the v2 of this patch? v1 of this patch had this issue, as described in the kb: http://support.microsoft.com/kb/2667402Don

Did that, did NOT reall repair RDP. What it did is replace rdpcorekmts.dll with an old version dated somewhen January 2012. This version has another problem, if you connect via RDP and authenticate RDP Service crashes.

Yes, I did download and apply version 2 of this patch. I verified this. I find it strange that all DCs are affected but no member servers...

I have the same issue .. no rdpcorekmts.dll after install of KB266740 .. uninstalled, rebooted, downloaded and tried V2 of the patch, rebooted .. no change .. still missing. Ok I ran the System File Checker tool (SFC.exe) - scans for missing or corrupted system files and repairs them. And **POOF** there was my RDPCOREKMTS dll at the right level ! .. restarted all the RDP services .. but RDC still does not work .. :( .. frustrating !

Do you see the RDP port open if you issue netstat -ano ?MCP | MCTS 70-236: Exchange Server 2007, Configuring

Hi, General steps, we uninstall the KB2667402 first. And restart the server, then reinstall the update. If the issue still persists, please try to replace the rdpcorekmts.dll from a working server. Hope it helps. Best Regards, AidenAiden Cao TechNet Community Support

Ive got the same issue so yea this has ruined my afternoon. ive tried replacing the RDPCOREkMTS.DLL file with well every version under the sun uninstalled installed KB2667402 4 times now, restarted (lost count how many times) RDP does not work!!! most of my servers dont have RDPCOREkMTS.DLL file why is this? anyone got anymore suggestions this thing is driving me up the wall

I have the same issue .. no rdpcorekmts.dll after install of KB266740 .. uninstalled, rebooted, downloaded and tried V2 of the patch, rebooted .. no change .. still missing. Ok I ran the System File Checker tool (SFC.exe) - scans for missing or corrupted system files and repairs them. And **POOF** there was my RDPCOREKMTS dll at the right level ! .. restarted all the RDP services .. but RDC still does not work .. :( .. frustrating ! I have noticed that every time i try a RDP session (and fail !) I get a DCOM error event 10016 ... others getting the same thing ?

Have you tried running the System File Checker tool (SFC.exe) - scans for missing or corrupted system files and repairs them. I used it and made my RDPCOREKMTS.DLL suddenly appear .. mind you it didn't fix my RDP error though!

Hi, For this issue, please uninstall both KB 2621440 and KB KB2667402 first, then install KB2667402 first, reboot and then install KB 2621440 and reboot. Another suggestion is please uninstall KB2667402 first, then check the rdpcorekmts.dll file version, if it is a different version than the one on the working servers, please rename and copy/replace it from the working server. Regards, Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi, I have been mucking around with this for a week now, trying all sorts of uninstalling, reinstalling, copying, restarting, etc. Have downloaded the latest version of the update as well and whenever installing found RDPCOREKMTS.DLL vanishes. Have come across the following article from microsoft that advises 3 files should be updated (MS12-020): http://support.microsoft.com/kb/2667402 I might be reading it wrong but it indicates there are 3 files updated: rdpcorekmts.dll rdpwsx.dll rdrmemptylst.exe So far I have found that when the V2 of the update is installed rdpwsx.dll also vanishes and then re-appears after an uninstall. I cannot locate the rdrmemptylst.exe on the system before or after install or uninstall. As soon as I can find matching versions of these 3 files on another system I will copy across and post if I am successful. Regards. Update Copying these files across did not get functionality back. However the following finally did: - Copied across all 3 files plus corerdp.dll from a working machine with version 6.1.7601.17779 - restarted the server, uninstalled both updates, which actually restored all 4 earlier versions of the files - restarted the server and RDS working again. I have tried reinstalling both latest versions of the updates but RDS breaks again. Following the steps above fixes it again but with the January version of the files. I'm fixed for the moment and will wait to hear more about these updates before reinstalling.

Hi, I have been mucking around with this for a week now, trying all sorts of uninstalling, reinstalling, copying, restarting, etc. Have downloaded the latest version of the update as well and whenever installing found RDPCOREKMTS.DLL vanishes. Have come across the following article from microsoft that advises 3 files should be updated (MS12-020): http://support.microsoft.com/kb/2667402 I might be reading it wrong but it indicates there are 3 files updated: rdpcorekmts.dll rdpwsx.dll rdrmemptylst.exe So far I have found that when the V2 of the update is installed rdpwsx.dll also vanishes and then re-appears after an uninstall. I cannot locate the rdrmemptylst.exe on the system before or after install or uninstall. As soon as I can find matching versions of these 3 files on another system I will copy across and post if I am successful. Regards.

Can anyone from Mircrosoft take a look at patch MS12-020, this has become a nuisance since we installed that on our 2008 R2 Servers. Is there any plan to roll out a counter fix to neutralize the havoc this patch has caused ? Thanks, Being Human

ok ive fixed it on my end Ive uninstalled updates from today to the original (to april) i then switched off the rdp services and replaced the rdpcorelmts.dll to one dating back to january 2010 made sure the services where still off, restarted the server. RDP magically works, now i know its a security risk but its only happen to servers that have mature 2008 installs on them. my new servers and vmware dont have this issue. for now im going to clone the machine and pick and choose which updates i can install correctly and wait for a decent patch to fix this issue.

Any update on this? I've seen this exact same issue on (2) Win7 Enterprise, 64-bit. Any fixes out there?

One more detail - I've having the same issues with 64 bit Windows 7 Professional systems; In the TerminalServices-RemoteConnectionManager/Operational log I see the message: "Terminal Server Role is not installed".

hi there we had the same issue: after insalling patch 2667402, RDP on a server didn't work anymore. so we uninstalled the patch - but no success! we also tryed to change the DLLs which where described in diverse blogs, install / uninstall patch 2667402 and 2621440, and so on. what finally worked for us: uninstall patch 2667402 - reboot, AND then delete (some entries you can't) all keys and all binarys with the content of "2667402". reboot the server again, and all worked fine! we hope to help anyone out there with this crappy (sorry - but it is....it took me 3 days to fix that) problem. regards simmix