Installing OpenGL runtime libraries
If you are running Windows 98/NT/2000, the OpenGL library has already been installed on your system. Otherwise, download the Windows OpenGL library from Microsoft.
This library alone will not give you hardware acceleration for OpenGL, though, so you will need to install the latest drivers for your graphics card:
Some sites also distribute beta versions of graphics drivers, which may give you access to bug fixes or new functionality before an official driver release from the manufacturer: