Article ID: 829779
Article Last Modified on 5/7/2007
APPLIES TO
- Microsoft Windows XP Professional
- Microsoft Windows XP Professional
- Microsoft Windows XP Home Edition
- Microsoft Windows XP Home Edition
Important This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows Registry
SYMPTOMS
On your Microsoft Windows XP Service Pack 1 (SP1)-based computer, you may experience one or more of the following symptoms:
- When you try to connect to an Internet connection or create a new network connection, you may receive the following error message:
- When you right-click My Computer, and then click Properties, you may receive the following error message:
- When you try to start the Remote Access Connection Manager service, you may receive the following error message:
- When you try to perform a system restore, you may receive the following error message:
CAUSE
This problem may occur if either of the following conditions is true:
- You install SP1 for Windows XP when Windows XP Home is installed, and then you upgrade to Windows XP Professional.
- You install SP1 for Windows XP and then use the System Restore feature to restore Windows to a state before the installation of the service pack.
Either of these conditions may cause a mismatch of the registry settings in the System registry hive.
RESOLUTION
To resolve this problem, use the following methods.
Method 1
Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
Make sure that the Objectname entry is set to LocalSystem in the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan
After you do so, delete the following registry subkeys. These subkeys on a Windows XP-based computer that does not have SP1 installed may cause the symptoms that are described earlier in this article:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan\PPP\EAP\25 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan\PPP\EAP\26
To make sure that the Objectname entry is set to the LocalSystem value, and to back up the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan registry subkey, follow these steps:
- Start registry editor.
- Locate the following subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan - On the File menu, click Export.
- In the File Name box, type exported rasman key, and then click Save.
- In the RasMan subkey, locate and then click the ObjectName string entry.
- If the value of the ObjectName entry is not set to LocalSystem, click Modify on the Edit menu.
- In the Value data box, type LocalSystem, and then click OK.
To delete the 25 and 26 subkeys from the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan registry subkey, follow these steps:
- Locate and then click the following subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan\PPP\EAP\25 - On the Edit menu, click Delete.
- Click Yes.
- Locate and then click the following subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan\PPP\EAP\26 - On the Edit menu, click Delete.
- Click Yes.
- Quit Registry Editor, and then restart your computer.
Method 2
If you still receive an error message when you try to perform a system restore after you complete the steps in Method 1, do the following:
- Click Start, click Run, and then type %windir%\inf.
- Locate the Sr.inf file, right-click the file, and then click Install.
- In the Files Needed dialog box, click Browse. Locate the Sr.sy_ file in the i386 folder of the Windows XP CD, click the file, and then click Open.
- When the installation is completed, restart your computer.
MORE INFORMATION
After you perform an in-place upgrade or repair installation, you must reinstall all updates to Windows. To reinstall Windows updates, visit the following Microsoft Windows Update Web site:
To prevent this problem, install the Q329441 critical update from the Microsoft Windows Update Web site.
For additional information about how to obtain the latest Windows XP service pack, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to obtain the latest Windows XP service pack
For additional information about how to perform an in-place upgrade (reinstallation) of Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:
315341 How to perform an in-place upgrade (reinstallation) of Windows XP
REFERENCES
For additional information about the "RUNDLL32.EXE - Entry Point Not Found" error message, click the following article numbers to view the articles in the Microsoft Knowledge Base:
330159 "RUNDLL32.EXE - Entry Point Not Found" error message when you start your computer
832323 "Rundll32.exe entry point not found" error message when you open My Computer system properties or the system configuration utility
For additional information about how to create a network connection after you install Windows XP, click the following article numbers to view the articles in the Microsoft Knowledge Base:
329441 You cannot create a network connection after you restore Windows XP
330163 "Error 711: Cannot Load Remote Access Service Connection Manager" error message when you create network connection
Keywords: kbprb KB829779
