Knowledgebase : Protection PLUS 4 SDK > Application Security
The License File password is used to protect one Protection PLUS user from another or even one user’s application from another. It is important to keep your password confidential. To prevent a License File from one version of your software from being used...
Other users who have access to Protection PLUS or SOLO Server accounts will only be able to activate their own software, not yours. With Protection PLUS 5 SDK, there is improved cryptography and security [https://www.softwarekey.com/help/plus5/Default.h...