AD user authentication with DLP Reporting and Updating API

Hello,

I am currently working on implementing a web service client against the DLP Reporting and Updating API version 11.6 and it looks like it doesn't work with AD authentication and that it only accepts single DLP user accounts.  Since our implementation uses AD authentication, we are required to be able to contact the web service using an AD account.

Any help or advice on how to properly pass an AD account credential (username, password and domain) to the webservice or any workarounds available, would be greatly appreciated.

Thanks!