Response.BufferOutput = true;
if (UserLanguage == "English")
{
    Response.Redirect("http://www.microsoft.com/gohere/look.htm");
}
else if (UserLanguage == "Deutsch")
{
    Response.Redirect("http://www.microsoft.com/gohere/look_deu.htm");
}
else if (UserLanguage == "Español")
{
    Response.Redirect("http://www.microsoft.com/gohere/look_esp.htm");
}