Missing "Mail" key within HKCU in Registry

Posted on 2011-02-17
Last Modified: 2012-05-11
I noticed some machines I oversee are missing this key:


While it is not causing any issues, there was a recent discovery with "SnagIt 10" that a setting within this "Mail" folder needed to be modified.

Is this key of any importance or unique to the user's profile?
What is it for and how does it get there?
If a machine is missing it, could it be imported from another computer?
Question by:garryshape
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LVL 95

Expert Comment

by:John Hurst
ID: 34921566
I do not have that key either. It is not causing me any issue, and apparently not causing you any issue, so I would forget about it. I would not (myself) attempt to import a key into the registry that was not there and that I do not need. ... Thinkpads_User
LVL 95

Expert Comment

by:John Hurst
ID: 34921584
I checked around a bit, and I think it might be related to the nature of options I did (or did not) set.
... Thinkpads_User

Author Comment

ID: 34921631
It looks like someone already asked a question along these lines:

However if someone doesn't have the aforementioned "Mail" key, I'm wondering if it's safe to import?

Not knowing what this key is worries me. Can't find online. Who knows it's probably explained deep within some Microsoft book I don't have.
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LVL 95

Expert Comment

by:John Hurst
ID: 34921683
The easiest way in the world to wreck a computer is to muck in the registry. If you are truly concerned, simply uninstall Office 2007 (abouit 5 minutes), restart, and resinstall it (10 minutes). If you are not on Exchange, copy your PST file to a safe place for assurance. So in a matter of minutes, you can reinstall Office and that will be a much safer way to repair it (if, indeed, it needs repairing). ... Thinkpads_User

Author Comment

ID: 34921962
I understand the implications of modifying the registry.
But as per the KB article from Techsmith, the only way to resolve one of the "bugs" is to go into the Registry and delete or rename a value in the "Mail" key.
I'm really just trying to figure out how that key gets there. I'm waiting for answer here, but will also be researching in search engines, too.
LVL 95

Accepted Solution

John Hurst earned 500 total points
ID: 34922066
My original post came from my virtual (and little) used Office 2007 machine. I see that the Mail key you are referring to exists in my real (and much used) Office 2010 machine. It appears to be related to options as I suggested earlier. So it probably how gets there via a proper install in the first instance, because I have never modified my registry in this area.  I did some checking around and see no need to manually add this key (with mutiple values) in a properly installed system.

Here is the key in my machine.

 Mail key options

Author Closing Comment

ID: 34922198
Thanks that appears to be it.

I went into Outlook and click “Tools” menu, then “Options”, [Mail Format] tab, clicked the “Internet Format” button. I didn't change anything, I just hit "OK" out of the boxes, went back into Registry and it was there.
LVL 95

Expert Comment

by:John Hurst
ID: 34922222
That's great. I am pleased you got the key back, and I was pleased to help out. ... Thinkpads_User

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