If you don't already have the QuickTime plug-in (a "plug-in" is a piece of software), you can download it, free of charge, from Apple Computer. It takes just a few minutes to download it onto your hard disk and install it. From then on, it will open automatically whenever you access QuickTime movies or QuickTime VRs (often shown as "QTVR"), wherever you are on the Web. QuickTime software is available for Windows 98/Me/2000/XP and Mac OS X/9/8.6.