Lets you protect your software against privacy. CopyBlock automatically disables your software after the specified trial period or end date. This program provides a complete interface that can handle the entire registration process. You can choose to issue unlimited registration keys, registration keys valid until a fixed date, or registration keys limited by a fixed number of days. All keys can be machine dependent or independent. CopyBlock contains a sophisticated algorithm to generate unique registration and extension keys.CopyBlock works with the following programs: C programs, C++ programs, Windows SDK programs, Windows MFC programs, Visual Basic programs, and InstallShield Installation scripts.