SAP Content server connectivity

Hi..

SAP Content Server 6.40 on Solaris 10, Apache 1.3. xx installed successfully. i unable to connect from ECC to SAP Content server gives error in error_logs of app ache

Mon Sep 6 14:46:55 2010 error http://client 172.16.20.219 File does not exist: /usr/sap/XXX/apache/htdocs//ContentServer/ContentServer.dll

It really great full, If you can help.

Regards,

Panu