The page doesn't mention it, but Windows 98 had a built-in VRML browser.
Around 1998 was a lot ofoptimism that VRML will bring 3D to the web. Now there is no 3D in web. When someone shows 3D is either a movie or js. On this page it says it was superceeded by X3D. This is the problem with modern SW - always reinventing the wheel.