Web services and basic auth

Hi,
I'm trying to set up a web service that should use basic authentication as security solution. I've used the admin console to define security policies and left the 'Check roles and Policies for' in 'Web applications and EJBs protected in DD' for my default realm.
The security policy is set on the application inherited by the EJB and web service module.
All is well when accessing the web services from a Java client but when I try to access them from a .Net client I get an '401: Unauthorized' response.
If I change the 'Check roles and Policies for' setting to 'All Web applications and EJBs' the .Net client works but the Java client doesn't work anymore (it can't access the WSDL-file that it needs).
I've tried to set up authorization settings in the web.xml for the web service module but it doesn't seem to make any difference.
I use the WebLogic 8.1SP5 Server.

What is VB?
I know about J2ME, J2SE, J2EE, JMS, JNDI, JSP, JDBC, JAX-RPC, JAXP, JAXR, JAXM, JMX, JMI, JAF, JPDA and several other acronyms but I've never heard of VB.

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