Some time ago, I came upon a computer which had a problem when you attempted to enter an web address into Internet Explorer. At first, when you attempted to go to another webpage, Internet Explorer would pop-up an error message with some message. I don't remember exactly what it said, but I do remember it had "(null)" in it, just like that. My first instinct was to try FireFox to see if it was malware causing the issue. This computer already had FireFox installed, but it was not working for some reason. Fortunately, I had a copy of FireFox on one of my CD's. So I installed that copy of FireFox onto the computer. FireFox began to work again, but Internet Explorer was still causing problems. Now, everytime I tried to go to another webpage in Internet Explorer, IE always opened up FireFox and to open the webpage. FireFox was not the default browser, but everything was sent to it.
Fortunately, I found this blog post from Microsoft. Although officially it is an IE7 Beta 1 bug, it manifests itself in non-beta versions of IE7 and IE8. The fix is very simple, a restart isn't required. Simply delete the registry key: HKEY_CLASSES_ROOT\CLSID\{c90250f3-4d7d-4991-9b69-a5c5bc1c2ae6}. Make sure you select the right one.
On a similar note, this problem may also be caused by having two versions of Internet Explorer installed on your computer. I would never do that.
If you are still having issues with Internet Explorer not working, then perhaps you need to do an in-place upgrade. 9 times out of 10, that will fix most problems.
Posted by Wade Burchette at 1:12 PM - Categories: Computer Repair Notes | Windows