Create custom search provider on new iegallery.com page?

As it turns out, you don't need MS for this. I've used this version and it works:

http://www.enhanceie.com/ie/searchbuilder.asp

Hi,

Adding Your Own Search Provider

If your search provider does not provide a direct way for you to add it as a search provider, you can still add it manually. Follow the instructions on the Windows Search Guide page to create your own search provider. Note that this widget adds the provider only as a search provider without search suggestions. If you know that the provider offers search suggestions, use the search provider's Web site to add the provider.

Also refer to the article provided below:

Search with the Internet Explorer 9 Address bar

http://windows.microsoft.com/en-US/windows7/Search-with-the-Internet-Explorer-9-Address-bar