If you don??™t know the dimensions of your QuickTime movie, open it in the QuickTime Player, choose Movie ??? Get Movie Properties, and select Size from the options list on the right of the dialog box that appears. 4. In the Plg URL text field, enter http://www.apple.com/quicktime/. This is the Web address to which users who don??™t have QuickTime are directed by their browser. 5. Click the Parameters button in the Plugin Property inspector to open the Parameters dialog box (see Figure 26-12), where you can enter additional