Java applets may be the most popular way to build interactivity into Web pages, but Netscape"s plug-in architecture (also supported by Microsoft"s Internet Explorer) offers even more powerful capabilities for programmers to exploit. Popular plug-ins such as Progressive Networks" RealPlayer of Macromedia"s Flash player demonstrate this. If you plan to develop your own plug-in, Netscape Plug-Ins Developer"s Kit contains the information you"ll need. Mike Morgan explains the basics of the plug-in architecture and describes common usages of plug-ins, then dives into implementation details: launching the plug-in, using Netscape"s plug-in methods, and even endowing plug-ins with Microsoft-defined capabilities such as OLE and ActiveX. The book includes platform-specific notes, debugging tips, and a valuable section on known implementation problems.