Considered the necessary information for programming Windows applications in MASM and TASM assemblers: development of window and console applications; Creating dynamic libraries multitasking programming; programming in the local network, including using sockets; Creating kernel-mode drivers simple methods for researching programs, etc. In the new edition, the material has been significantly redesigned in accordance with the new OS capabilities. The issues of file management and API programming in Windows are considered much more broadly. The book is accompanied by a CD with all examples that are cited or mentioned in the text.