Security Aspects in Adobe WebService

Hi,

I would like to know - are there any security features which i can adopt while integrating Web Services in Adobe forms like a Login Pop up etc.

I tried changing the security settings at the WSCONFIG transaction for the respective web service, but was not successfull at triggering the WebService.

I am, at present, able to trigger the webservice only through default user ids already set in the WSCONFIG transactions for the service.

I would like to know - how i can bring about the login pop-up for a web service deployed in Adobe Forms.

Any sugegstions or pointers are welcome.

Kindly help.

Thanks and Regards,

Anto.