How to Put username and password in POP UP box

[Anjana]

Hi All,

I was trying to automate the thing which I do everyday. For that i need to first click on internet explorer then I will enter URL ,after that one pop will come asking username and password and then click OK.

Till URL things I have done .Find the below code:

#include <IE.au3>

MsgBox(64,"Information!!!","Click OK to Open Internet")

$oIE = _IECreate()
_IENavigate($oIE, "xxxxxx.xx.xxx",1)

But on that POP UP, how can I put username and password automatically .I am new to AutoIT. Please help me with this. Thank You in advance.