I need to make changes to arswww.ini file
After I make the change do I have to recycle the odwek server or arssockd to pick up the change ?
You should never restart Arssockd after changing arswww.ini.
otherwise, yes you should restart your odwek server.
As javed.khan said, the only applications that still use arswww.ini are "ODWEK CGI" and "ODWEK Servlet". All other ODWEK Server are not using it anymore (WEBi or IBM Content Navigator for example).
Or maybe a custom code that use it.
Sincerely yours,
Alessandro