RTHDCPL.EXE err Fixing RTHDCPL.EXE - Illegal System DLL Relocation Error in Windows XP

Test and fix it using Norton Utility (download and run it):
http://download.cnet.com/Norton-Utilities/3000-18512_4-10907620.html

Restore the system to a time prior to the problem.

Hi, you can try rolling back your operating system to a time before the problem started, by starting in safe mode. To do this press the ESC button during bootup and select start in safe mode, once there you can select this option.
If this dos'nt work you will need to reinstall the operating system, unfortunately you will need an operating CD for this.

Try re-installing uxcore.dll file.

To re-install UXCore.dll

Just follow this repair link (http://www.corruptedfilerepair.com/File-Information/UXCore.dll-Windows-Live-Client-UX-Microsoft-Corporation.asp) and download the file named UXcore.dll

To download and install a DLL file, you will first need to download the DLL file and register it on your computer.

Steps:

1. Download the DLL file from the download link on this page and save the file to one of the folders as seen in step 3. .EXE files do not need to be manually registered.

2. Backup the old version of the DLL file.

3. Click Start > Run and type in the following command:

Windows 95, 98, or Me:
regsvr32 \windows\system\UXCore.dll

Windows NT or 2000:
regsvr32 \WINNT\system32\UXCore.dll

Windows XP or Vista or Windows 7:
regsvr32 \windows\system32\UXCore.dll

Download File UXCore.dll

EXE (Executable) Files:

Steps:

1. Download the file to a folder on your computer

2. Scan the .EXE file using an Anti-Virus Scanner.

3. Run the .EXE file by double-clicking the file

ZIP/RAR Archives:

You will need to uncompress the files in the archive using WinRAR or WinZip first.


Nore : Default Location - c:\program files\windows live\installer\uxcore.dll

There could be a problem with your sound driver.

Install this update to resolve an issue where certain third-party applications may not start, and you receive an error message: "Illegal System DLL Relocation" after you install security update KB925902 (MS07-017). (source: Microsoft)

You can download the fix here:

http://www.microsoft.com/downloads/details.aspx?familyid=74AD4188-3131-429C-8FCB-F7B3B0FD3D86&displaylang=en

If you have any more questions, just come back here and leave a comment - I'm happy to help.

4mat it

Certain programs may not start after you install security update 925902 (MS07-017) and security update 928843 (MS07-008) on a computer that is running Microsoft Windows XP with Service Pack 2 (SP2). Additionally, you may receive an error message that resembles the following: application_executable_name - Illegal System DLL Relocation

The system DLL user32.dll was relocated in memory. The application will not run properly. The relocation occurred because the DLL C:\Windows\System32\Hhctrl.ocx occupied an address range reserved for Windows system DLLs. The vendor supplying the DLL should be contacted for a new DLL.

if you have install any application then unistall the application

Hello,

Sounds like you have a corrupted ActiveX control. Fortunately it is very easy to verify this by locating a folder in your Windows sub folder call Downloaded Program Files. c:\(windows)\Downloaded Program Files\.

Once you open this folder you can right click the ActiveX control entry and select update or in most cases choose Properties to diagnose a problem. When you select Properties, you'll be presented with a popup with three tabs, the dependency tab, when selected, may have a notice that the Control is damaged/broken. If it is, back out and then right click the Control in question and choose Remove. When needed the ActiveX control will download again.

If however, you get this Alert of an attempt to relocate in memory a critical system file then chances are high this ActiveX control is Malware or a Trojan because according to Microsoft programming standards, there is never a reason to change that DLL in question and this is one of many DLLs that have reserved addresses in memory for a reason. It would only be attempting to change that file if you are under attack.

To be certain you are virus/malware/trojan clean go to:
http://www.kaspersky.com/virusscanner

It too will want to download and install an ActiveX control so look for the Alert Bar and you can definetly trust this Control. Once installed it will scan your system using a database at their online site that has not chance of being infected.

If you have any questions, concerns or need for more clarification please don't hesitate to use the comment box below to contact me.

Regards,
Worldvet

http://support.microsoft.com/kb/935448/en-us

I had the same issues. This link should give you an update that will help fix the issue.