Normally when you search for something in the start menu in Windows 7 you see a link at the bottom of the search results which say “See more results”. If you have installed a customized search connector you can easily make a setting so that a link to your search connector appears above this “See more results” link. The changes for this are made via group policies which means you can easily let your users’ search in for instance your Intranet based on SharePoint.
Create a new GPO and look for the setting under (Policies) > User Configuration> Administrative Templates > Windows Components > Windows Explorer. The policy name is “Pin Libraries or Search connectors to Search again links and start menu”. What you enter in the various “location” fields in the GPO is the full patch to the search file. You can get the path by right clicking the search connector in Windows Explorer, choosing Properties and then copying the entire path from the “Target” field.