I have found that some 3rd party toolbars added to Office or Internet Explorer can cause the problem. I had the same error come up and started removing software from control panel. I then started looking on the C: drive and found a directory called "c:\searchassistance" and ran the uninstall.htm. This brought up an html page with an uninstall button. I clicked uninstall. I then closed internet explorer and opened it again and everything was working great. So if you ever have problems with any application, first seek out any third party toolbars and remove them first before going through the headache of trying other things.