Why is Windows Server Essentials Experience required on Windows Server 2012 R2?
UiPath needs Essentials Media Pack to be installed on Windows 2012 R2 Server for it to function properly with Image automation.
For Essentials Media Pack installation, it needs the Windows Server Essentials Experience Role to be installed and configured. If not, there might be issues with Image automation which gave exception of dll missing in some versions.
Error: "System.DllNotFoundException: Unable to load DLL 'cvextern' "
Further details about this can be found on Microsoft's documentation portal. The link for the same is shared Related links section.