All-In-One Protector uses a license file (extension .lic) for storing license information. This file is modified during the program start and during activation. The user needs read and write access for the file.
This is especially important in a network environment or if distributing the application via CD/DVD.
Always make a backup of the license file if you start the All-In-One Player directly. The license file is modified with each start and cannot be used any longer for distribution.