Sending email using users preferred email client

I have an Excel workbook uploaded in which I include a 'Rate this workbook' email link. If the user clicks the link, the user should see an email client open with various prefilled fields (basically my email address and a preselected comment based on which level of rating they clicked) and then simply send the email to me.

My query:

When I test the email link on my computer, the 'Outlook Express setup' wizard initiates. However, I don't use Outlook Express (Yahoo and Zimbra).
I am wondering of it is possible to automatically ensure that in cases where a user doesn't use Outlook Express by default that Excel will open the users default email client- which could be a web browser or another application? Is this something determined by each users (Control Panel?Registry?) settings for handling email hyperlinks? Is there a piece of VBA code I could include in the workbook which identifies the relevant email client to open?

I know I can simply provide my email address on the workbook and allow a user to copy/paste it into their email application but I feel that by minimising the amount of effort required by a user to provide a rating that I'll be more likely to receive user rating feedback.

Thanks in advance for any replies.
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