I don't know it this helps, but on www.opengl.org it says "OpenGL v1.1 software runtime is included as part of operating system for Win 2000, Windows 98, Windows 95 (OSR2) and Windows NT. ", so you should only ever need to install on Windows 95 OSR1. You could download the '95 install from
http://download.micr...nloa....95.exe. Then you could check the OS version and run the exe as part of your install only if the OS version is WIndows 95 OSR 1...