In Internet Explorer, if you press F1 or use the Help menu, the Windows Help and Support screen will show. However, you may find that you always see a Topic not found error message. The reason is that Internet Explorer 9’s help...

I’ve previously mentioned one site that wasn’t working properly due to sending a malformed Content-Type header. Today, I encountered another site with a similar problem, but in a subtly different way. Looking at the IE9 F12 Network tab, you...

Every few months, a Microsoft employee will send me an email complaining that Internet Explorer showed them the following dialog: This page is accessing information that is not under its control. This poses a security risk. Do you want to continue...

Thanks to TuxExplorer for reminding me to blog about this. Both Windows Explorer and Internet Explorer are able to load extensions known as Browser Helper Objects (BHOs). BHOs are a minimal extensibility point into both the shell and the browser, allowing...

Recently, there’s been some interest in how clients perform Certificate Revocation checks and browsers behave in the event that a revocation check cannot be completed. In today’s post, I’ll explain Internet Explorer’s default behavior...

An amusing April Fool’s satire I ran across yesterday reminded me of a Connect bug that was reported back in the IE9 Beta. The HTML <video> control’s default context menu includes a “Save Video As…” menu option that...

Recently, a user sent in the following screenshot of a security warning they encountered when attempting to download the Microsoft Zune software: Obviously, we immediately attempted to reproduce the reported problem, and we found we were unable...

In today’s post, I’ll provide a high-level overview of features in Internet Explorer that impact the loading of ActiveX controls. Internet Explorer 6 and later allow the user to enable or disable ActiveX controls on an individual basis...