Thanks Ron.

Actually, encrypt, compress (zip) and email is exactly what I am looking
for. If I am not mistaken your examples do not encrypt the ActiveWorkbook and
the mailing functionality is limited  to Outllook. Unfortunately, I cannot
tell in advance which email client will be used. Therefore, I would like the
VBA macro to use the default email client. It would be disappointing if
Microsoft was only interested in supporting 100% Microsoft solutions. I find
it hard to believe that they haven't thought that users could be using other
email clients than Outlook.

Thanks for the link, nevertheless.