wine users - Aug 2009 - OpenGL supports vertex+fragment programme then in Dx9

Please reply
as my i915 chipset supports vertex programme and fragment programme
is wine compare it with DirectX 9 Pixel Shader and Vertex Shader or with GLSL

is it with GLSL 
then 
what wine do with ARB Vertex and Fragment programme

if any demo/test programme for this please direct me to that one
and 
what is difference Between
wine's window's DLL
and 
Real Window's DLL
other then there size 
is coping window DLL to wine 
 [Twisted Evil] give better performance in wine's emulation [Twisted Evil] 

thanks in advance(To Wine forums)