If your WAMP Server icon is always Orange, the WAMP Server Apache is not starting or the WAMP Server is showing Red icon and doesn't turn green, then these suggestions will help you fix the problem.

But the system includes Mercury Mail which is an SMTP, POP3 and IMPA4 server. Cool. So, I move the Simple Groupware subdirectory from the WAMP Web root to the XAMPP root.