Termsrv.dll – Pre Service Pack 2 Revision History for Windows 7 SP1, Windows Server 2008 R2 SP1 and Windows Small Business Server 2011 (SBS 2011)

31-Aug-2012 – 6.1.7601.22104 – Termsrv.dll – x86/x64 – http://support.microsoft.com/kb/2750090 – High CPU utilization by the Svchost.exe process and the Lsm.exe process in the Remote Desktop session after you remotely connect to a computer that is running Windows 7 or Windows Server 2008 R2

24-Nov-2011 – 6.1.7601.21866 – Termsrv.dll – x64 – http://support.microsoft.com/kb/2647409 – Remote Desktop Services sessions are not kept alive as expected in Windows Server 2008 R2

28-Jan-2011 – 6.1.7601.21650 – Termsrv.dll – x64 – http://support.microsoft.com/kb/2479710 – Remote Desktop service crashes when Group Policy settings are refreshed in Windows Server 2008 R2 after you enable the “Required secure RPC communication” and “Set client connection encryption level” Group Policy settings