Change search behavior in Internet Explorer

I need a program (dll) that will alter the search engine in Internet Explorer from whatever search engine to a search engine or URL of my choice - creating a URLSearchHook entry... For example if a user types in the Address bar a search word or phrase then the results from my site are shown. Also, if a user enters a URL that returns a 404 error I would like the page redirected to my search engine or URL. The software is intended to be downloaded and installed from a website and therefore would be best done in the form of a DLL that I can place in a cab or have the ability to install from a link as activeX component. Also, I would like this to be done in VC++, if you're not comfortable with that VB is OK. I would like the software to have an Uninstall Facility. I need well documented code, and also thoroughly tested on all I.E. platforms (4.0+). ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Windows 95, 98, ME, NT4.0, Win2K, XP Pro/Home All versions of Internet Explorer - 4.0+