Universal Termsrv.dll Patch for Windows Server 2012 R2: A Comprehensive Solution

What is the Universal Termsrv.dll Patch?

1. What is the "Universal Termsrv.dll Patch"?

termsrv.dll is the system file responsible for Remote Desktop Services (RDP) in Windows.
The "universal patch" modifies this file to allow multiple concurrent RDP sessions using the same user account — something normally limited (only 2 concurrent administrative sessions, and they must be different users unless using RDS CALs).