The universal patch changes a single byte or a short hex sequence inside the DLL. Specifically:
Allows multiple remote users to access the same PC at the same time.
Disclaimer: This blog post is for educational purposes based on widely available community tools. Modifying system files can cause instability.
When you attempt an RDP connection, this file checks the licensing and user policies. If it detects that a session is already active (a local user at the console), it initiates the "lockout" process.
