Writing Tsrs Through C This book takes you into the exciting world of Terminate and Stay Resident Programs. A world which most DOS programmers don't dare to test their strengths with From the first toddling steps to the professional TSRs, this book has everything. It contains an in-depth coverage of advanced topics like Pop up TSRs, TSRs & Swappable Date Area, Development of TSR Engine, Vaccines & Viruses, TSRifying existing utilities, etc. More than 5000 lines of source code and a direct and lucid approach distinguishes this book from others. After reading this book, you will have a proficiency in writing TSRs that you never imagined possible.