Re: Why did Ex-500.com install a toolbar?
Google keeps a record of all search engines you have used on specific sites (like the EX-500.com Google custom search) and puts them as an extended standard toolbar so you can skip going to the site to search first. It does this for every site you use the CUSTOM search for. They can be easily removed.
I confused TOOLBAR with CUSTOM SEARCH ENGINE (Through Google Chrome).
Chicago, IL - Cincinnati, OH