Frontpage 2000 will give you the following error message when you try to place the e-mail address of a recipient in a form (i.e. you want the form information e-mailed to you):

"This form is being created on a Disk-Based Web or the FrontPage Server Extensions have not been configured to send e-mail. Please direct your system administrator or Internet Service Provider to the instructions in "Setting up E-mail Options on Windows" or "Setting Up E-mail options on UNIX" in the Server Extensions Resource Kit. If you do not have the Server Extensions Resource Kit, you can find it at http://www.microsoft.com/frontpage/wpp/serk. Would you like to remove the e-mail recipient?"

Here, they are talking about the server extensions installed on your Windows machine. You can configure it to send e-mail, but it involves editing a text file that looks like win.ini file. Not exactly fun. As long as you click "No", it will work.