Error while creating HTTP Destination

Hi All,

I am trying to create a HTTP connection in the Business System.

I am following the webblog "How do you activate ABAP Proxies?"

Under first tasks "1.Create HTTP connection in the business system"

4.Path Prefix: /sap/XI/engine/?type=entry

In the above step is giving me error saying that "Query string is not allowed."

Can any help me to over come to solve the problem.

Thanks,

Nagarjuna.