Convert HTTPWebRequest to WebBrowser Scraping

We are scraping from here: [login to view URL] We have a tool similar to this: [login to view URL] Source code is in C#. Process: 1. User inputs Adwords account in settings window. This removes captcha. 2. User inputs phrase(s) in our program. 3. User inputs CPC, search and other filter data. 4. Keyword ideas from Google keyword tool are populated into the C# tool. Right now, HTTPWebRequest requires constant updates to a [login to view URL] (attached) file after every Google change. Your job is to either automated the creation of [login to view URL] or change it to WebBrowser.