Download or read book Undocumented DOS written by Andrew Schulman and published by Addison-Wesley Longman. This book was released on 1994-01 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this programmer's guide to DOS features a tutorial on the proper use of undocumented functions and a reference to all undocumented functions, as well a powerful utilities disk.