Webservices call via Proxy server

[Tarun Gupta]

Hi

I am trying to make a web services call via a proxy server which requires 
authetication. I am getting following error. Please help.

(407)Proxy Authentication Required ( The ISA Server requires authorization to 
fulfill the request. Access to the Web Pro
xy service is denied.  )
        at 
org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:630)
        at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:128)
        at 
org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:71)
        at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:150)
        at org.apache.axis.SimpleChain.invoke(SimpleChain.java:120)
        at org.apache.axis.client.AxisClient.invoke(AxisClient.java:180)
        at org.apache.axis.client.Call.invokeEngine(Call.java:2564)
        at org.apache.axis.client.Call.invoke(Call.java:2553)
        at org.apache.axis.client.Call.invoke(Call.java:2248)
        at org.apache.axis.client.Call.invoke(Call.java:2171)
        at org.apache.axis.client.Call.invoke(Call.java:1691)

Regards

Tarun