I am working on to integrate MOSS 2007 with WebSphere Portal Server 6.0/6.1 (WPS) using WSRP (MOSS would be the WSRP producer and WPS would be WSRP consumer). Since, MOSS by default does not support WSRP, so I have installed an additional toolkit over it and created a WSRP complaint web-part (exposed as a web service). We have a WSRP complaint WSDL and we are using that to register SharePoint as a producer within WPS. The problem I am facing is, the registration fails saying that cannot access the WSDL .Can you please help us by giving pointers on what could be the issue and how to resolve it. If the issue is related to security, please let us know what security settings need to be done at MOSS side. Any help would be greatly appreciated.