Tag Archives: “Internet Explorer”

HTTP and HTTPS requests or traffic to a Windows Vista, Windows 7, Windows Server 2008, SBS 2008, Windows Server 2008 R2 or SBS 2011 machine may exhibit increased latency if the connection is through a network load balancer

If you utilise Microsoft Internet Information Services IIS or an application that uses the System.Net.HttpListener class is installed or running on one the operating systems below, and you have a Network Load Balancer then you may find that Increased latency occurs on HTTP and HTTPS requests and traffic.

This issue occurs because the HTTP and HTTPS requests from clients can include zero length data in the SSL records, certain server-side variables do not update correctly in this instance and Http.sys leaves the connection in the CLOSE_WAIT state.  This intern exhausts the open connection limit can introduce latency, timeouts and connection problems.

Affected Operating Systems:

Microsoft Windows Vista

Microsoft Windows 7

Microsoft Windows Server 2008

Microsoft Small Business Server 2008 – SBS 2008

Microsoft Windows Server 2008 R2

Microsoft Small Business Server 2011 – SBS 2011

The Microsoft Knowledge Base Article KB 2634328 includes further information on this issue and provides an updated version of Http.sys that corrects the issue http://support.microsoft.com/kb/2634328

CPU Usage may increase to 100% while you are scrolling through a Web page in Microsoft Internet Explorer 8 or Microsoft Internet Explorer 9

CPU Usage may increase to 100% while you are scrolling through a Web page in Microsoft Internet Explorer 8 or Microsoft Internet Explorer 9

This can occur if the “Use smooth scrolling” option is enabled in “Internet Options” by default the “Use smooth scrolling” setting is enabled in Internet Explorer 8 and Internet Explorer 9.

To resolve the issue you just need to disable/untick the “Use smooth scrolling” option in Internet Explorer by following the steps below

  1. On the “Tools” menu in Internet Explorer, click “Internet Options” then click the “Advanced” tab
  2. Click to untick the “Use smooth scrolling” check box as shown in the screenshot below

The Microsoft knowledge base article KB 885355 http://support.microsoft.com/kb/885355

Adobe Flash Player 11.2 Beta for Windows and Mac OS X

You can download and trial the beta release of Adobe Flash Player 11.2 using the following link

http://labs.adobe.com/downloads/flashplayer11-2.html

This beta release introduces multi-threaded video decoding and Flash Player background updates

Cannot Open or View PDF Files using Internet Explorer Browser

A very common issue that Internet Explorer 8 and 9 users can face is an inability to view or download PDF files from a secure site (HTTPS).  As an example you will find that if you try to view the PDF in a browser window you will simply see a blank page.  This is due to the use of cache control headers which don’t seem to work correctly with secure sites in Internet Explorer.

If you are having this particular issue then please do the following:

  • Start “regedit” the default Windows Registry Editor
  • Next you need to locate this registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings
  • Click on the “Edit” menu and then click “New” and then “Dword Value”, you will need to do this twice so that you can setup both the keys below.

Name = BypassSSLNoCacheCheck Type = Dword Data = 1 (Hex or Decimal)

Name = BypassHTTPNoCacheCheck Type = Dword Data = 1 (Hex or Decimal)

  • Close Regedit and Reboot, you should now find that the issue is resolved.