This is useful when you have multiple programs running on the same domain, which may interfere with the IP.Board cookies that are set. You can simply put a unique prefix so it does not interfere with other cookies. For example:<br />
<b>myipb_</b><br />
<br />
If you are running multiple installations of IP.Board, you can setup prefixes similar to:<br />
First forum: <b>forum1_</b><br />
Second forum: <b>forum2_</b><br />
And so on.