If you mean that you want to invoke an application on the client machine, you can't do that. If on the other hand you want a page to redirect the user to an on-line mail service, provided from a web site, then the simplest thing to do is to return an HTTP redirect as the page response. This can be via the servlet HttpResponse class.
// Gregory
Hi Gregory,
Thank you for your reply.
I haven't the closest idea how to do what you told me to do.
You know, I have buid some Applets in the past that were embbeded in html files as you can see in: http://pccruzadas.planetaclix.pt/index.html.
Now there are so many tecknologies that I am a litle confused.
Thanks anyway,
Manuel Braz