[dba-VB] VB 5 - creating E-mails as a user

Hi

What code do I need to set up so that users can send E-mail from within their logged on "secure" areas by the click of a button to a
specified E-Mail address.  Perhaps with subject and body also completed?   My code works fine for administrators, but for users it
fails in both Outlook and Outlook Express.

The line I currently use is:

Call RunShellExecute("open", mailto:xxx at yyyyy.com?subject=ZZZZZ & eSubject, 0&, 0&, 10)

Any assistance or suggestions will be greatly appreciated.

TIA and

Kind regards,
David