Well, asking for specific interfaces was one of the tricks to work around IE mangling the HTML, needed for the early versions, and makes sense from the errror you mentioned. But in your first code snippet nothing was done at document level ? Or left out ?


>I adjusted for this to resolve the issue.
>
>

>        Dim loHTMLDocument As mshtml.HTMLDocument = Nothing
>        Dim loInternetExplorer As SHDocVw.InternetExplorer = Nothing
>
>        loInternetExplorer = New SHDocVw.InternetExplorer
>        loInternetExplorer.Visible = True
>        loInternetExplorer.Navigate("MuUrl")
>        apiShowWindow(loInternetExplorer.HWND, SW_MAXIMIZE)
>        Do While (loInternetExplorer.Busy)
>            System.Threading.Thread.Sleep(100)
>        Loop
>        loHTMLDocument = loInternetExplorer.Document
>        loHTMLDocument.getElementById("Username").Value = "MyUsername"
>        loHTMLDocument.getElementById("Password").Value = "MyPassword"
>        loHTMLDocument.getElementById("Form1").submit()
>

>
>
>For now, it seems I have to get mshtml.