Add the DualSearch provider.

<?xml version="1.0" encoding="UTF-8" ?> 
<OpenSearchDescription xmlns="http://a9.com/-/spec/opensearch/1.1/">
<ShortName>DualSearch</ShortName> 
<Description>DualSearch provider</Description> 
<Image height="16" width="16" type="image/x-icon">http://jonudell.net/img/dualsearch.ico"</Image>
<InputEncoding>UTF-8</InputEncoding> 
<Url type="text/html" template="http://dualsearch.atsites.net/dualsearch.php?s={searchTerms}&search%5B%5D=google&search%5B%5D=msn" /> 
</OpenSearchDescription>