How to enable hardware acceleration?

I need some advice on how to enable hardware OpenGL rendering in Windows NT and Windows 98 using 3dfx cards (particularly the Banshee, Voodoo3, and Voodoo 5). So far my OpenGL programs run fine, but they are very slow due to software rendering. It would be very helpful if anyone coulde tell me exactly which files to link and how to enable hardware rendering, for example on Windows NT with a 3dfx Banshee card. I am only interested in OpenGL, though, not glide.

Thanks in advance!

Nevermind, I eventually got the answer - I copied the 3dfxOGL.dll file that came with my drivers to OPENGL32.dll and everything worked (mostly). Just thought I would post the answer in case anyone else has this question.