[KaktoR]

You can use the folowing for CurStep = ssPostInstall or CurStep = ssDone (like you wish)

if IsComponentSelectedByName('Game Components\cm:PL') then
    {Execute program here (you can use Exec2 function)}
if IsComponentSelectedByName('Game Components\cm:CZ') then
    {Execute program here (you can use Exec2 function)}

Btw, I rework the Redist page. New update will follow in the next days.