Knowledgebase : Protection PLUS 4 SDK > Copy Protection
Drive image utilities such as GHOST and DRIVEIMAGE duplicate the entire hard drive, almost byte by byte, and virtual machines by their nature can make it difficult to uniquely identify them. There is nothing to prevent these, but there are ways to handle ...
There are several ways to handle this situation. The most common way is to use a license file alias. This synchronized backup License File will stick around after your application is uninstalled, preventing the user from re-installing and starting over wi...
Each license file contains computer specific system identifiers, and it compares these identifiers with the system data on the current computer the application is running on. So while a user could copy a license file to another machine, it wouldn't do any...
Unfortunately, we cannot control changes that Microsoft makes with Windows updates/upgrades, and this can result in a change to the information available to our licensing to enforce the copy protection. The change in data can push the copy protection chec...