1. Click Start, Search, All Files and Folders, More Advanced Options, enter a check in Search Hidden Files and Folders, Search System Folders, and Search Subfolders. Type ie.inf in All or Part of the File Name box, select C: in the Look In drop-down menu or the letter of the hard drive containing the Windows folder, and then click the Search button. Find the file labeled ie.inf in the result pane. Right-click this file and then from the context menu, select Install.

2. The article [Q304872] states that when you try to install Internet Explorer 6 on a computer that is running Windows XP, you may receive an error message that can occur if Internet Explorer 6 has already been installed and the installation package does not contain any new customizations -- a customized versions of Internet Explorer 6 that was created by an Internet service provider, Internet content provider, or a corporate administrator that is installed instead of the default browser.

3. "How to Reinstall or Repair Internet Explorer and Outlook Express in Windows XP (Q318378)."