#3 What is this warnning about?

[Patrick Gelin]

"http://.../check.php"
- Orpheus Requirements Server connectivity...
Warning: fsockopen(): unable to connect to
localhost:8989 in D:\Inetpub\wwwroot\dres\check.php
on line 263

I saw my config.php it's a XML RPC problem. My
extension=php_xmlrpc.dll is ok but I'm not sure it's
working or the port is autorised... Is it a big problem for
dres nominal reunning? What is the service disabled with
this problem?