Develop custom add on for Internet Explorer

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C#

Internet

AddIn

Explorer

I am looking for developing an add-on in Internet Explorer and below is the requirement. I am looking for developing this using Visual Studio & C#. Hope i can develop using these platform with less effort.

- Basically a textbox and a button will be shown in Internet Explorer as a new task bar.
- If a user enters a text in the textbox and clicking on the button will take you to a website with the searched keyword. For example you search for "toy" and it will redirect to bestbuy.com website with toys listed.

I have gone through the websites which talks about spiceIE, BandObjects, GreaseMonkey etc. Not sure which one will suit for our requirement. Please suggest tips, sample tutorial links etc.