This usually indicates that the patched DLL was replaced during the reboot sequence (e.g., by a pending Windows Update). Stop the Windows Update service before patching, or reapply the patch after the reboot. Also verify that the correct byte pattern was used for your specific Windows build.
The termsrv.dll file is the library responsible for Remote Desktop Services. In standard Windows Server 2019 installations, this file contains code that checks the OS version and license type to enforce a single-session limit. Patching this file involves modifying specific hexadecimal values to bypass these checks, effectively enabling "Concurrent RDP." Why Administrators Seek This Patch windows server 2019 termsrvdll patch top
It doesn't modify the actual termsrv.dll file, making it more resistant to Windows Updates. It provides a simple RDPConfig.exe to manage sessions. 🏁 Summary This usually indicates that the patched DLL was