Sergey and Tracy

Thanks. That's correct except on Vista (on the machine I am using) there is another key in
HKEY_CURRENT_USER\SOFTWARE\Clients\Mail

It would appear that's that one Vista is updating consistently. Changing default email client didn't change the value in HKEY_LOCAL_MACHINE entry.

I take I hove to look in current_user first. Any comments will be much appreciated.

Mathias


>Tracy is correct about registry key HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail. See Adding an Email Client Application for details
>

>The default e-mail client application
>
>HKEY_LOCAL_MACHINE
>     SOFTWARE
>          Clients
>               Mail
>                    (Default) = Mail_Client
>

>
>>
>>I haven't checked this on xp but it appears so far it is the Vista users being affected to that's where my interest is.
>>
>>I use an lagacy registry class to pick the default email client and the code looks for a key in registry's "mailto\shell\open\command" in Classes Root.
>>
>>This works fine most of the time. The default email client on Vista is Windows Mail. If a customer upgrades or installs Windows Live Mail, and sets it as default email client, the key above still points to Windows Mail.
>>
>>Any advice please on where I should be looking instead or where else I should be looking. The ShellExecute works fine and it does pick the right client so it must be lodged some, any ideas will be much appreciated.
>>
>>Thank you