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Cannot RDP into machine with error RDPDD.dll failed to load

cannot rdp into machine with with error RDPDD.dll failed to load
I have tried sfc /scannow
running xp sp 2
tried replacing with one from another computer in the system 32 dir.
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APPUND
Asked:
APPUND
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1 Solution
 
ottobockCommented:
Hello,

It may have to do with an ATI driver, or something else. Please have a look here:
http://blogs.technet.com/brad_rutkowski/archive/2008/01/04/systemroot-system32-rdpdd-dll-failed-to-load.aspx

Good luck!
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APPUNDAuthor Commented:
tried rolling back display driver.
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ottobockCommented:
Hmm, every single thing I am reading refers to the display driver. Here's another EE post: http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Remote_Desktop-Terminal_Services/Q_23130548.html?sfQueryTermInfo=1+%22rdpdd.dll+fail+load%22

Maybe try going to the mfg website and downloading the newest drivers for your PC.

I also found a post mentioned to turn down Hardware Acceleration in display properties - maybe worth a try. Though it did not work for this particular case, it's very easy to try:
http://www.deskshare.com/Resources/articles/dmc_turnoffhardwareacceleration.aspx

One last thought - have you tried running Windows Updates to download and install the newest version of RDP? (newer versions cache credentials and such, a slightly different look to the icon as well)
Good luck - I'll keep looking around and post any additional info I may find.
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ottobockCommented:
Yet another post on EE said to fully uninstall the display driver from Add/Remove Programs and restart. If possible, allowing the driver to reinstall without using the ATI Catalyst. (going off the assumption you are indeed dealing with an ATI video adapter...)

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Remote_Desktop-Terminal_Services/Q_23438949.html

If you have Nvidia - certain drivers have been noted many times to have problems as well.
http://www.dslreports.com/forum/r20628199-XP-Pro-RDP-broke-just-flashes-connection

Of the hundreds of different claims of this issue around the internet - all seem to revolve around that pesky video driver. Hopefully one of these posts helps you out.
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ArgorianCommented:
a bit old, but maybe this solution can help someone.
It worked for me.

If you increase the size of the session image space then you can run remote desktop.

Add the following registry key:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management]

"SessionImageSize"=dword:00000020
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sharonstroederCommented:
Just as an FYI for anyone running into this problem in the future, if you do not want to revert back to an old driver, the registry fix posted by 'Arqorian' worked flawlessly for me. Thanks!
I have an NVIDIA GeForce 8400 GS with driver version 175.16 installed
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STS-TechCommented:
Is that 00000020 hex or decimal?
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sharonstroederCommented:
to: STS-Tech
That is hexadecimal
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STS-TechCommented:
Thanks for the reply- I guessed it was, and it did fix the issue!
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CapperdogCommented:
Is the fix to add a DWORD Value under the Memory Management key or to create a new key under Memory management?
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STS-TechCommented:
DWORD, not Key.
If you have a SessionImageSize dword, just modify it- otherwise create a new one.

Good Luck.
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CapperdogCommented:
Thanks STS... Problem solved!
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STS-TechCommented:
NP- but credit (if not points) goes to Argorian.  Glad I could help, though.
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ScottDareCommented:
The "SessionImageSize" fix worked just great for a wonky NVIDIA GeForce 9300 GE. Only required a restart. No driver un/re install needed!
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CapperdogCommented:
It has worked great for me on 3 out of 4 machines. I still have one that has the same symptoms, but this fix has not taken care of it. I even tried to increase the session image size a little more and rebooted agsain, but it still won't paly nice. Any ideas??
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STS-TechCommented:
Got and ATI video card laying around?  That'll either fix it, or let you know it's a different problem.
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CapperdogCommented:
I will check it. Thanks!
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CapperdogCommented:
Hmmm.... Just got a call from one of our techs. He just tried to apply the fix and it did not work, just like the machine I was working. I checked his settings in the registry and they are correct. I just checked the card and this machine has an ATI Radeon HD 2400 XT card in it. I also checked the machine I was working on and it too has the same card.

Do we think that changing the video card may still be the next step here?
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CapperdogCommented:
Hold the phone peeps. We just downloaded the latest driver for this card and we are in! It was updated 10/04/09 and has fixed the RD issue with these machines.
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