I recently faced strange problem with IE8 browser. The URL autocomplete feature suddenly stopped working. I searched the internet deeply to find the fix for this problem with completely no luck. Analyzing how the IE8 browser works I found, that it is looking for a COM object with class ID {80A3E9B0-A246-11D3-BB8C-0090272FA362} when trying to autocomplete URLs. I then googled for the library which contains the object with mentioned Class ID and found that it is “langwrbk.dll“. Having that in mind fixing the problem was as easy as executing one command:
regsvr32 langwrbk.dll
This worked in IE8 browser, however I am almost sure it will work in other versions of IE as well.