Visual C++ 6 is the latest C++ 6 development tool produced by Microsoft. With detailed content and selected examples, this book comprehensively introduces the new features of Visual C++ 6 and how to use these new features in the software development process. The book is divided into five parts: the first part introduces the basic knowledge and basic concepts of Visual C++ 6; the second part introduces database programming methods; the third part explains Internet programming; the fourth part explains the security issues and common issues that should be considered when creating applications. format and HTML format help file creation method and the establishment and distribution of application installation disks; the fifth part is the appendix, which introduces ActiveX and OCX component resources, online resources and some technical terms involved in this book. The content of this book covers all kinds of knowledge required to develop perfect applications. At the same time, the book gives a large number of sites and discussion group addresses related to Visual C++ programming. These addresses are the sites where real Visual C++ 6 programmers go online. . This book is a good upgrade guide for readers who already have experience in Visual C++ programming. For readers who are new to Visual C++, this book can help them get started quickly and quickly reach intermediate or even advanced levels of Visual C++. C++ programmer level. This book is an important self-study and teaching reference book for the majority of scientific researchers, teachers and students of related majors in universities who are engaged in the development and application of Visual C++ 6.