It seems to be fairly stable. The server will handle multiple clients, unlike a PSD, it will accept a request for a connection. It is similar to the way an ftp server works. Graphics and binary files can also be requested. At this time the only clients I have only handle text products.
Source code is included for the clients and the server.
I will try to compile a binary that will run on HP-UX 9.0x. If the server does not respond it will hang up and you will have to kill the client. Your sever will hang up if you make a request and AFOS does not respond. I have updated the readme file for the afsrv program, it include the directory listing for tha AFOS async port and a script file to rotate the log files for the afsrv program.