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In Chrome, when I click on a mailto: link, I'd like to be taken to my Gmail's Compose window. So I downloaded ChromeMailer and it works relatively well. However, after using Outlook 2010, the default for the mailto reverts to Outlook.

I went into Outlook's Options, clicked Default Programs... and was greeted with this:

enter image description here

As you can see, the checkbox is grayed out and I can't do anything to changed it. Clicking Select All checkbox does nothing either.

How do I stop Outlook from stealing the mailto protocol handler?

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(this is a joke, if you can't handle it, please, press ctrl+w) Go find developers that wrote outlook and harass them (legally) with [various gardening tools] to stop being [unflattering insults here]. PS - I find this very "interesting" behavior. Maybe you can write a script that's called as a scheduled task to assert the association you prefer. – Doc Jul 6 '11 at 20:55
This is probably because Outlook does not see any other programs on the computer for handling any of these types. – music2myear Jul 6 '11 at 20:57
@msuic2myear: I thought he said that the ChomeMailer established the mailto protocol default? Sounds like Outlook isn't asking before overwriting a default, which is my definition of political-programming. – Doc Jul 6 '11 at 21:10

You can change the association of mailto in the registry by going to


and change it from Outlook to Chrome composer

"C:\Program Files (x86)\Google\Chrome\Application\chrome"
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If you only want to use GMail for the links in Chrome, the 'Send from GMail' extension works well for me on a machine that has both Outlook and Thunderbird installed.

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