VRML 2.0 worlds are optimized for COSMO PLAYER 2.x, or CORTONA VRML PLUG-IN
which you can download free from the Lipman site below.
For EXTENSIVE VRML / X3D browser RESOURCES / DOWNLOADS on the web, visit: NIST - Robert Lipman site.
Win XP Users (with pre-bundled IE):
To view Java applet and VRML 2.0 content on this site make sure you have a browser installed Java Virtual Machine (VM)