Alternatively, run this command in an elevated PowerShell prompt: powershell Stop-Service -Name "TermService" -Force Use code with caution. Step 2: Take Ownership of Termsrv.dll
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Search for the specific bytes corresponding to the version (e.g., in early Windows Server 2016, a commonly patched sequence changes 83 3C 81 to 90 90 90 or modifies the termsrv.dll version table). Save the modified termsrv.dll back to System32 . 3. Verification Restart the Remote Desktop Services ( TermService ). Alternatively, run this command in an elevated PowerShell
If you only need to allow more than one session per user (rather than bypassing the total connection limit), you can often do this via Group Policy without patching the DLL: Open gpedit.msc . If you share with third parties, their policies apply
will often detect the change as "file corruption" and revert it to the original, unpatched version Security & Compliance