When trying to query for a document that has a question mark (?) in its name or address as part of a FQL query, you may notice weird behavior from FAST. For example, let's send a query that look for a document with the URL address of http://localhost/blogs.aspx?blogid=5: string fqlQuery= @"and(path:(string(""http://localhost/blogs.aspx?blogid=5"", Mode=""PHRASE"")), filter(sitename:equals(""Local SharePoint"")))" ; Sending...