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

05-Oct-2012 – 6.1.7601.22126 – Http.sys – x64 – http://support.microsoft.com/kb/2768523 – “0x0000007E” Stop error after you configure a computer to host a web service in Windows Server 2008 R2

24-Nov-2011 – 6.1.7601.21866 – Http.sys – x86/x64 – http://support.microsoft.com/kb/2634328 – Increased latency occurs on an HTTP connection to a computer that is running Windows Vista, Windows 7, Windows Server 2008 or Windows Server 2008 R2 if the connection is through a load balancer

17-Sep-2011 – 6.1.7601.21822 – Http.sys – x86/x64 – http://support.microsoft.com/kb/2618425 – “0xC0000010” error and Http.sys intermittently ends TCP/IP connections in Windows 7 or in Windows Server 2008 R2

31-Aug-2011 – 6.1.7601.21805 – Http.sys – x86/x64 – http://support.microsoft.com/kb/2607930 – Slow performance when an application retrieves a file on an SMB share by using the HTTP protocol in Windows 7 or in Windows Server 2008 R2