An applescript url handler that opens System Preference panes passed to it. (http://yourmacguy.wordpress.com/2013/07/17/make-your-own-url-handler/)

syspref_handler.applescript

on open location this_URL
    -- passed urls should be "syspref://[PaneName]
    -- or "syspref://[Pane_Name]" -- no spaces
    set x to the offset of ":" in this_URL
    set sp to text from (x + 3) to -1 of this_URL
    set pane to do shell script "echo \"" & sp & "\" | awk '{gsub(\"_\",\"\\\\ \"); print}'"
    set h to path to home folder
    set home to POSIX path of h
    set path_heads to {"/System/", "/", home}
    set pref_pane to text from (x + 3) to -1 of this_URL
    repeat with head in path_heads
        set pane_path to head & "Library/PreferencePanes/" & pane & ".prefPane"
        try
            do shell script "open " & pane_path
            exit repeat
        end try
    end repeat
end open location