When I'm browsing a site that contains .WMV (Windows Media Video) files, when I click on them, they;re supposed to play in Windows Media Player. But, on my system (W7 Ultimate x64) they don't. Instead, I get a browser error:
Internet Explorer cannot display this web page
Here's an example of a WMV file that causes the problem: http://ecn.channel9.msdn.com/o9/learn/videos/Office2010-RoadmapUnit-DevelopingOffice2010Customizations/Office2010-RoadmapUnit-DevelopingOffice2010Customizations_2MB_kit.wmv
The URL of the .wmv file appears in the address bar, so it's finding the file OK. It seems like IE just forgot how to launch Windows Media Player. Any ideas how I fix this?