Obviously AppUp does not pre-install DirectX 2008 Redistribution. Shall I bundle 100MB's DirectX for Windows XP? How can I do that? To run a 5MB small program requires 100MB download does not make sense. Maybe another way is to refuse the support of Windows XP but only Windows 7. This can save a lot of troubles.
For more complete information about compiler optimizations, see our Optimization Notice.