This ad was from 1985 and sold by Value-Soft in Portland Oregon.
Created by Users for Users. Take command of your software. This handbook claims to unravel the puzzle of software protection. Learn how to protect or un-protect your software. Includes a large section on successful BASIC program security. Covers the latest evolution of copy protection techniques. Also included a disk with 21 utility programs. Any have a PDF of this book or the disk? I think that this refers to the book below. Let me know if you know more about it.