termsrv.dll Windows Server 2022 for multiple concurrent RDP sessions, the "proper piece" typically refers to identifying and replacing specific hex patterns within the DLL file. However, because Windows Server 2022 allows 2 concurrent sessions by default and supports many more with the Remote Desktop Services (RDS) role, patching is usually a workaround for specific licensing or non-server edition limitations. 1. Hex Pattern for Patching (Version Independent)
provides a script that automates the backup, ownership change (via TrustedInstaller), and patching specifically for versions including Windows Server 2022 RDP Wrapper Library termsrv.dll patch windows server 2022
If you prefer an automated approach, several reputable community scripts handle the permissions and byte replacement for you: TermsrvPatcher (PowerShell) GitHub repository by fabianosrc termsrv