You can approach this problem differently and let user decide what they want to use. Add configuration option to your application which controls what to use and default it to your email form. Give user ability to change it to use Outlook.

>We've added an email routine to our reports so that the user can easily email the report instead of prining it. Our idea was, try to use Outlook first and if that doesn't work for some reason, we'll pop open our own form that allows them to enter the email address, subject, etc.
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>However, if a user does not use Outlook and has never set up a profile, etc. we definitely don't want Outlook to open and start prompting the user to set all that stuff up. My code looks like this:
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>How can I determine ahead of time that the user is not using Outlook and skip straight to our form?
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>Thanks for your help.
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>Rodd