hard reading variable

[Anshoo Arora]

But, what are you running? All I see there are some object references. That code will not perform any action on your AUT.

See if this helps:

Code:

Set oBrowser = Browser("micclass:=browser")
Set oPage = Page("micclass:=Page")
Set UserName = oPage.WebEdit("name:=username", "index:=0")
Set PassWd = oPage.WebEdit("name:=password", "index:=1")
Set LoginLink = oPage.Link("innertext:=login")
Set oDialog = oBrowser.Dialog("text:=Avviso di Protezione")
Set btnSi = Browser("micclass:=Browser").Dialog("text:=Avviso di Protezione").WinButton("text:=&Sì")

Try to use only the properties that are enough to uniquely identify the object. Also, while you at it, can you double check the WinButton's text property again?