Windows 7: Outlook Keyboard Key - Change ?

If the key doesn't open Thunderbird open Control Panel > Default Programs > Set your default programs, click Thunderbird in the list, click "Choose defaults for this program" and make sure both MAILTO and Send Mail are checked, if not check them and click save then try your key again.

This is basically what Alpha said above.

You could just click "Set this program as default" for Thunderbird as it only has these two options and two for it's own file types. You won't have to do anything if it says "This program has all of it defaults".

Let us know if if your key opens it when it is the default for both protocols.

And do you have any other e-mail clients installed you wish to use at any time?

If Thunderbird opens with the key are you happy enough to setup your GMail and Hotmail accounts in it and use that as your solution?

I can't use the key, I don't have outlook or Thunderbird, installed.

Thinking about this again, I don't think going into Default Programs is going to work. Web Mail clients aren't an installed program so they likely won't show up like Outlook does.

JerometheGiraff, did you try installing the Logitech Setpoint software?

The Sitepoint software is a failure, won't work on my keyboard. It doesn't seem that I can change the default keyboard keys configuration.

OK, thats a shame, thats a newer Logitech keyboard too. Maybe they are going to faze out Setpoint or something. I'm not sure who to blame for your problem. I'm leaning towards Microsoft though. I do believe its the OS that determines what those keys do and there just isn't an easy way to change it without a third party app. Just about every keyboard out there has those keys on them and they work with the basic Windows drivers. What you are trying to do is made even harder because in essence you are trying to make it open a web page and windows wants to tie it to an actual program. I'm sure there is a reg key for that somewhere but I have no idea where it is. I'm sorry to say that i don't have any other suggestions at this time.

Sorry again. I thought because it shows up under the MAILTO protocol you must have it installed.

You could try installing Thunderbird and if your key opens it then that would be the easiest answer.

There is a reg hack I tested that works with Tom's exe when you click a e-mail address but I don't know if it'll work with you keyboard and because you don't have Thunderbird installed I don't if it'll work for you.

Did you give up on this or install Thunderbird?

No, cause I use gMail.

I guessing you mean no you didn't install Thunderbird but have you givin up?
I did say previously that Thunderbird can use GMail accounts.

Because Thunderbird shows under the MAILTO protocol in Default Programs you could also try renaming Tom's exe to Thunderbird.exe and placing it in "C:\Program Files (x86)\Mozilla Thunderbird\Thunderbird.exe".

I don't think this will work though as Thunderbird is not installed so you won't have all the required registry entries but it'll only take a couple of minutes to try it. Try clicking an e-mail address from your web browser first.

I didn't install Thunderbird, and have given up, because I use gMail. I know that I can use Thunderbird with gMail, I don't want to install any software for a email client. I'm going close this issue as this keyboard short-cut keys cannot be modified, specifically the one key, the rest I have no complaints with.