Enabling this policy allows you to add intranet search locations in addition to the primary intranet search location defined ...

Enabling this policy allows you to add intranet search locations in addition to the primary intranet search location defined in the Add Primary Intranet Search Location policy. The value of this text should be:

name1,url1;name2,url2;...nameN,urlN

For example:

MySearch,http://mysearch.aspx?q=$w;MySearch2,http://mysearch2?q=$w.

For each search scope, provide:
1) A name for the scope, such as 'IT Web'.
2) The URL to the search service. Use $w in place of the query term for the search service URL.

If your intranet search service is SharePoint Portal Server, your query should resemble the following:
http://sitename/Search.aspx?k=$w

If your intranet search service is Windows SharePoint Services (WSS), the query should resemble the following, where XXXX is the locale ID of your WSS Service. For example, the English locale ID is 1033.
http://sitename/_layouts/XXXX/searchresults.aspx?SearchString=$w

These additional intranet search locations are added to the All Locations list in the Desktop Search results.