Run OpenGL application at boot time Windows 7


I have a nice animation, which I would like to play when my Windows 7 starts

The approach I have taken for windowing system is that I first create window context and hand it over to OpenGL rendering context,
But I am not sure when even windows is not completely ready, I would be able to get windowing context or not.

Actually I have learned OpenGL from the scratch, so it won;t matter for me if you just provide solution for fix function pipeline,
as I windows7 has 1.1 by default support

So, any help pleaseā€¦?