This is Behind the Code’s pilot episode with Core File Services architect, Mark Zbikowski. Mark began his career at Microsoft in 1981, working on DOS 1.0 as a designer, coder and liaison with IBM. His quarter century long career has included significant involvement in OS/2, Cairo’s Object File System (OFS), and the NT File System (NTFS). In addition, he has been a key player in all of Microsoft’s File System work. Former Microsoft software architect Pat Helland interviews Mark about the early days at Microsoft, his passion for product development and the challenges of producing software.