New edition to this bestselling programming guide. Completely revised for MS-DOS 5. Covers many previously undocumented DOS and BIOS functions. Provides detailed interrupt comments to clearly illustrate the function's purpose and results.

Microsoft's official reference to its venerable and omnipresent operating system. The heart of the volume is a comprehensive 280-page reference to the MS-DOS system calls. The book also contains chapters on the file system, character I/O, program management, national language support, and device drivers.

Internationally renowned DOS expert Kris Jamsa is back with a complete reference for DOS programmers. Jamsa provides in-depth programming information and details all function calls and programming services necessary to take full advantage of DOS. Includes numerous examples to enable DOS programmers to expand their skills.

The ultimate sourcebook on interrupts for PC programmers. Now updated and expanded, PC Interrupts, 2nd Ed. includes DOS 6, Windows 3.1, Novell DOS, and other new APIs.