The RDP Wrapper Library is the safest and easiest method because it doesn't modify the DLL directly on disk, but wraps the service to enable multi-session support. Download the latest RDP Wrapper library. Run install.bat as administrator.
: The Remote Desktop Services ( TermService ) must be halted via PowerShell or the Services console ( services.msc ).
There are valid free solutions available. For a , the PowerShell TermsrvPatcher or the RDP Wrapper Library are excellent tools that can successfully disable the connection limit on Windows Server 2016, giving you the functionality of a terminal server without the cost of CALs. termsrvdll patch windows server 2016 free
Is this server for a or an isolated test lab ? How many simultaneous users do you need to support? Are you managing this server via Group Policy (GPO) ?
微软官方问答中明确提示：修改termsrv.dll以允许多用户远程访问，。虽然个人用户被追究的可能性极小，但在企业环境中，合规风险不可忽视。 The RDP Wrapper Library is the safest and
Note: Hex patterns change slightly across different Windows Server update builds. Always match your exact build number before editing. Step 5: Restart the Remote Desktop Service Return to the services.msc console. Right-click and click Start . Alternative Method: Using RDPWrap (RDP Wrapper Library)
To achieve stable, lawful, and secure multi-user RDP access on Windows Server 2016, organizations must implement the official Remote Desktop Services role [1, 2]. Open and click Add Roles and Features [2]. Select Remote Desktop Services installation [2]. : The Remote Desktop Services ( TermService )
termsrv.dll补丁像一把双刃剑。它让无数用户在无需支付RDS CAL的情况下突破了并发数的限制，也为技术论坛贡献了浩如烟海的配置教程和经验分享。但硬币的另一面是显而易见的：长期依赖补丁，意味着系统安全性的持续打折、系统不稳定的随时爆发、合规问题的如影随形。
Save the file in the Hex Editor.
These issues can arise due to various reasons, including software conflicts, improper installation of updates, or malware infections.
If Windows Updates install a new version of termsrv.dll (e.g., changing from 10.0.14393.x to a new patch), your patch will be overwritten, and RDP will stop working. You will need to re-apply the patch or update your rdpwrap.ini file.