title: Undeclared identifier: 'PosEx'
body: <p>I tried to use this code in my program in delphi 2007</p>
  
  <pre><code>function ExtractText(const Str: string; const Delim1, Delim2: string): string;
  var
    pos1, pos2: integer;
  begin
    result := '';
    pos1 := Pos(Delim1, Str);
    if pos1 &gt; 0 then begin
      pos2 := PosEx(Delim2, Str, pos1+1);
      if pos2 &gt; 0 then
        result := Copy(Str, pos1 + 1, pos2 - pos1 - 1);
    end;
  end;  
  </code></pre>
  
  <p>I did a search on google i've found  that i need "FastCode.Libraries-0.6.4.zip" i download it but don't know how to use it to make the code above works. please help!</p>