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I installed a demo version of a text editor recently (Ultraedit) and it appears to have set itself up as the default viewer for the html source of messages (via right-click -> View Source).

Now that I have uninstalled it, Outlook can't show the source of the messages so I need to associate my usual editor with this process. Does anyone know where this is configured?

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What version of windows are you running? – cmorse Jan 3 '12 at 15:37
Windows 7 Ultimate x64. – 5arx Jan 3 '12 at 15:43

Just edit this registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\View Source Editor\Editor Name

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I don't have that key? – 5arx Jan 4 '12 at 14:29
Then try to create this key and set the full path to notepad.exe as its default value. – thims Jan 4 '12 at 17:29
Tried that! Still not working :-( – 5arx Jan 5 '12 at 9:22

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