OpenGL Download??

I recently installed the Sevice Pack 5 for VC++ and it seemed to courrupt some of my headers and libs. I would be thankful if someone could tell me where to donwload them from.


search for them either on this site or on google. the filenames are :
gl.h glu.h glext.h wgl.h wglext.h opengl32.dll glu32.dll