PreVU requires Netscape Navigator 2.0 (or later). The PreVU "Plug-in" must be installed in the Plug-ins Folder  located within the Netscape Navigator folder.  Install as follows:
• Click on the hard disk popup menu below, 
  and choose  "Select Folder..."
• Find  and select the Plug-ins folder  within the Netscape  
   Navigator folder. Then,  click on the "Install" button.