The following are some observations with widely distributed browser Plugins that Opera may use. Quick Time QuickTime is a format and program produced by Apple Computers. A plugin for browsers is available.
Opera uses the Netscape plugin.
After downloading the self installing exe program, double click on it to start the installation and follow the installation instructions. After installing, if you do not have Netscape on your system you will need to tell Real Player and Opera where to find the RealPlayer Plugin. Goto the Windows Start menu and select Find . Then select Files or Folders to search for the file nppl3260.dll . You need to copy that file to Opera's plugins folder.