http://windowsxp.mvps.org/IEFIX.htm
IEFix - is a general purpose repair utility for Internet Explorer which repairs Internet Explorer by registering it's core DLL files and reinstalls using the IE.INF file. More Information is given below. Suitable for Windows 98/ME/2000/XP systems.
Fixes the following problems
Symptom 1: When you click a hyperlink in an e-mail message or on a Web page, or right-click a hyperlink on a Web page and then click Open in New Window, you may experience one or more of the following issues:
Nothing happens
The new window may be blank
You may receive a scripting error message
Symptom 2: When you use the Print command or the Print Preview command in Internet Explorer, nothing may happen.
Symptom 3: When you try to connect to Web folders, you may receive the following error message: "The current operation could not be completed because an unexpected error has occurred."
Symptom 4: Internet Explorer does not prompt for the default browser check even though the prompt is enabled in Internet Options.
Symptom 5: Internet Options Advanced tab is completely blank.
Symptom 6: Internet Explorer About box version information is completely blank.
Symptom 7: Address bar search does not work.
Symptom 8: Unable to type in text boxes in a search engine or website.