: Open a command prompt with administrative privileges and run: copy c:\Windows\System32\termsrv.dll termsrv.dll_old Take Ownership Navigate to C:\Windows\System32 Right-click termsrv.dll Properties Change the Owner to Administrators and grant them Full Control Stop Remote Desktop Services services.msc Remote Desktop Services , right-click it, and select Replace the file : Copy the patched termsrv.dll file (specific to Windows 8.1/Server 2012 R2) into C:\Windows\System32 , overwriting the existing one Restart the service : Go back to services.msc the Remote Desktop Services Method 2: RDP Wrapper Library (Recommended Alternative) Instead of permanently altering system files, the RDP Wrapper Library
Monthly cumulative updates or security patches (especially those addressing CVE-2020-0609, CVE-2019-0708 – BlueKeep) will likely replace termsrv.dll with a new version. After a Windows Update, you . Otherwise, the limit returns to 2. universal termsrv.dll patch windows server 2012 r2
The patch locates and changes a conditional jump instruction ( JNZ , JE ) to an unconditional jump ( JMP ) or alters the comparison value (e.g., changing a cmp eax, 2 to cmp eax, 9999 ). Specifically, for Server 2012 R2, the known patch targets the following hex pattern: : Open a command prompt with administrative privileges
Universal Termsrv.dll Patch for Windows Server 2012 R2 is a third-party modification tool designed to bypass Microsoft's native restriction on concurrent Remote Desktop Protocol (RDP) sessions. While Windows Server editions naturally support more than one session, they often require a Remote Desktop Services (RDS) License Server Client Access Licenses (CALs) The patch locates and changes a conditional jump
Fortunately, a universal patch is available that can fix these issues and more. The patch is designed to work on Windows Server 2012 R2 and can be applied to fix problems related to termsrv.dll.
takeown /f C:\Windows\System32\termsrv.dll /a icacls C:\Windows\System32\termsrv.dll /grant Administrators:F Use code with caution. Step 3: Backup the Original File
Type Administrators (or your specific administrator username), click , and click OK . Click Apply . Back on the Security tab, click Edit to change permissions.