Windows XP owners: If you are having troubles watching the meeting videos and your computer uses the Windows XP operating system, Microsoft requires you to upgrade your version of Windows Media Player. It’s free and easy to do.
Microsoft has released a solution to the problem with videos not starting. You can read all about it here or just following the steps below:
The Issue: Error message when you try to use Windows Media Player to stream audio or video from Windows Media Services: "The specified protocol is not supported"
For Windows Vista, Windows 7, and Windows 8: C:\Users\Username\AppData\Local\Microsoft\Windows Media\
For Windows XP: C:\Documents and Settings\Username\Local Settings\Application Data\Microsoft\Windows Media\
You need to replace the word Username for your windows Username – which is the name you log into your computer with. Once inside this
folder, double click on the (Windows Media Player) version number– mine was “12.0”.
Now inside the folder, delete any files that end in XML – I had two in there. They look like “Wmsdkns.xml”
After deleting these XML files, refresh your browser and the videos will play again.