ABAP Web service - Virtual Interface Not Found

Hi,
I have created a ABAP web service based on RFC. I changed the authentication to "Basic username/password" from SOAMANAGER. Also tested the web service from WSNAVIGATOR (of different portal) using WSDL url. Web service successfully returned response.
Now, I have a AJAX client where I have hardcoded the request (from wsnavigator) and trying to call this web service in SAP BW web template (from HTML/JavaScript). But its not giving error as "Virtual Interface Not Found". Also, i get 500 error. But the end point of the web service if looked up from browser gives response. The SICF service is active and upon tests gives valid response.
Found couple of discussions regarding this:
http://wiki.sdn.sap.com/wiki/display/VC/VirtualInterfacenotfounderror
But i'm not finding the setting to activate virtual interface in SE80. ALso, we have created many such web services and they used to work fine prior to upgrade to Ehp1 SP05 (BI) but the newly created web service is not working.
Any inputs?
Abhijeet

Hi can you please let me know how you resolved this issue?

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ABAP Web service - Virtual Interface Not Found

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