How to daemonize a C++ application

This article will be useful:
http://www.cuj.com/articles/1999/9905/9905a/9905a.htm?topic=articles

To daemonize a program, you just have to register the PID with register_daemon(demo code in the article).  But that's only the start.  You'll have to respond to SIGs instead of messages, and you'll probably find a host of other incompatabilities in the source.  But if it's been written with the port in mind, it shouldn't be too bad (I've only taken apps the other way, though :-)

Note also that the startup/shutdown semantics are different from an NT service.  Un*x daemons are usually launched from a text startup script; the location and format of these varies across different OS implementations.  You'll want to compare against an existing daemon on AIX (sendmail, routed, ftpd, sshd are a few that might be running) to use as an example.

If you're not using it for production, or this is only for personal use, it's sufficient to drop it into /etc/rc.local, which is a script indicating customized startup stuff for the local machine.