IE9 Compatibility–HttpOpenRequest and lplpszAcceptTypes

The WinINET API allows the caller to specify the accepted MIME types for a given HTTP request by passing a null-terminated array of null-terminated strings using the lplpszAcceptTypes parameter. When calling the HttpOpenRequest API, applications must take care to either pass NULL, or a pointer to a properly-formed array of MIME-type strings. // Null-terminated array…

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IE9 No-Reboot Setup and the Windows Restart Manager

On Windows 7, Internet Explorer 9 can often be installed without rebooting the system. In cases where a system restart is required, either the system lacks one of the required prerequisites (so IE Setup is forced to install it and reboot) or a running program or service is holding one of Internet Explorer’s binaries and…

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Understanding the IE9 Software Rendering Mode

I recently heard from some users who are seeing lower-than-expected scores on the Speed Reading and FishIE Tank benchmarks. I went to check these tests myself and found that my laptop’s score was low. In fact, it was much lower than I’d seen last year. What happened? First, a bit of background: These graphically rich…

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IE9 RC Minor Changes List

Back in September, I published a list of minor changes in IE9 Beta. In today’s post, I will provide an updated list of things that have changed in the IE9 Release candidate. Note: This list also includes a few changes that were present in Beta that I didn’t mention at that time. Of course, because…

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Cross-Browser Interop and the HTML5 Canvas

Technical Evangelist Giorgio Sardo just published a great post about HTML5 Canvas, responding to some concerns about bugs in the IE9 Beta. The post also takes a quick look at cross-browser interop for the Canvas object. It’s definitely worth the read: http://blogs.msdn.com/b/giorgio/archive/2011/01/14/building-great-browsers-together.aspx -Eric

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SOCKS Proxies in Internet Explorer

We recently had a report over on the IEBlog that SOCKS proxies are not supported by IE9 Beta. That observation is correct, and a regression from prior versions of Internet Explorer; IE9 Beta simply ignores the SOCKS proxy if one is specified in the Internet Control panel. Update: This regression, introduced in IE9 Beta, was…

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Showing more sites on about:tabs

By default, IE9 will show 2 rows of your favorite sites on the about:tabs homepage. However, you can customize IE9 to show up to 5 rows with a simple registry modification. Inside the NewTabPage registry key, create a REG_DWORD named NumRows, with a value of 2 to 5. Or, simply merge one of the following…

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Google Image Search and IE9 Beta

One of the commonly reported bugs on Connect is that Google Image Search shows grey boxes for some of the images in IE9 Beta. I had a quick look at the site this afternoon, and I can easily reproduce the problem, as you can see in the screenshot below. Now, I tend to debug things…

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