"Explorer Has Encountered an Error and Needs to Close" Error Message When you Start Windows XP

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SYMPTOMS

When you start your Windows XP-based computer, you may receive the following error message:

Explorer has encountered an error and needs to close. We are sorry for the inconvenience.

Also, you may not be able to open folders, such as the My Documents folder or the My Computer folder.

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CAUSE

This problem may be caused by Qcbar.dll, a program that adds adult Web site links to the Internet Explorer Favorites menu.

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RESOLUTION

To resolve this problem use one of the following methods.

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Method 1: Remove the Link from Your Favorites Folder in Internet Explorer

To do so, start Internet Explorer, and then click Uninstall on the Adult Links menu in the Favorites folder.

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Method 2: Manually Delete the Qcbar Program Files

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 (http://support.microsoft.com/kb/322756/ ) How to back up and restore the registry in Windows

To do this, follow these steps:

Click Start, and then click Run.
Type regedit in the Open box, and then click OK.
Delete each of the following registry entries. To do this, right-click each registry entry below, click Delete, and then click Yes.

HKEY_CLASSES_ROOT\Allch.IEObj
HKEY_CLASSES_ROOT\Allch.IEObj.1
HKEY_CLASSES_ROOT\CLSID\{765E6B09-6832-4738-BDBE-25F226BA2AB0}
HKEY_CLASSES_ROOT\CLSID\{D6FC35D1-04AB-4D40-94CF-2E5AE4D0F8D2}
HKEY_CLASSES_ROOT\Interface\{ED7D1356-F7C2-4A27-A87C-C0DFEB3A628F}
HKEY_CLASSES_ROOT\Interface\{242CA913-1637-4F74-9729-EA349AF3ECAC}
HKEY_CLASSES_ROOT\QcBar
HKEY_CLASSES_ROOT\QcBar.1
HKEY_CLASSES_ROOT\TypeLib\{C02EE3A0-1881-419F-A5ED-737223463292}
HKEY_CLASSES_ROOT\TypeLib\{60381D4B-8129-449A-A5F2-5417AD0571CC}
HKEY_CURRENT_USER\Software\QcBar
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{765E6B09-6832-4738-BDBE-25F226BA2AB0}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Toolbar\{765E6B09-6832-4738-BDBE-25F226BA2AB0}
Shut down, and then restart your computer.
Manually delete the Qcbar program files. To do this, follow these steps:
1. Click Start, and then click Run.
2. Type cmd in the Open box.
3. Switch to the C:\Documents and Settings\UserName\Start Menu\Programs\Accessories folder, and then type the following commands:
  
  del "%WinDir%\Downloaded Program Files\allch.dll"
  
  del "%WinDir%\Downloaded Program Files\QcBar.dll"
In the Internet Explorer Favorites folder, delete the Adult Links folder, delete the AdultSearch folder, and then delete the Sports folder.
Delete the Adult Links Daily shortcut from the Desktop menu and from the Start menu.