You can make the form modal, and set properties so that it doesn't have a minimize button, but you would have to do some pretty deep calls to the windows api to override the alt-tab function of Windows. In other words, I don't think it possible.
Greg
Greg Gum
Greg@Avasoft.net Avasoft.com / Avasoft.net
800-586-5939
1861 Brown Blvd
Suite 738
Arlington Texas 76006