How to pass ASMX services security username & password in SQ

Hi,

I have created asmx services on insert trigger. its successfully working also.

after that i have added security for asmx services.

i created below code and its working successfully.

set @URL=N'http://localhost/Test/WebService1.asmx/Frm_SendNotification?LsM_Message='test'

EXEC @rc = sp_OACreate 'MSXML2.ServerXMLHTTP', @objServHTTP OUT

EXEC @rc = sp_OAMethod @objServHTTP, 'open', NULL, 'GET', @URL

EXEC @rc = sp_OAMethod @objServHTTP, 'send'

EXEC @rc = sp_OADestroy @objServHTTP

but how to pass asmx username and password

Thanks

Basit.