IE11 mode: object doesn't support this property or method when adding captcha

I am writing one VB code for filling a form in a webpage which contains captcha. I wrote the bellow code to copy the captcha from the website so that the i can load it in my application and complete the form just by typing the captcha manually.

Below is my sample code

Private Sub Command1_Click()
On Error GoTo Command1_Click_EH
Dim O As Object
  Set O = WebBrowser1.Document.body.createControlRange()
  Call O.Add(WebBrowser1.Document.All("captcha"))
  Call O.execCommand("Copy")
  Set Picture1.Picture = Clipboard.GetData
Set O = Nothing
Clipboard.Clear
Exit Sub
Command1_Click_EH:
MsgBox (Err.Description)
End Sub

Private Sub Form_Load()
   WebBrowser1.Navigate ("http://www.captchacreator.com/v-examples.html")
End Sub

Everything works perfectly in IE8.

But the problem is, In a PC having IE 11 and having FEATURE_BROWSER_EMULATION set to IE11 (11000 ) it gives error like "object doesn't support this property or method" for the line "Call O.Add(WebBrowser1.Document.All("captcha"))"But if FEATURE_BROWSER_EMULATION set to IE 8 then it works without any error. But i want to set FEATURE_BROWSER_EMULATION to IE11 in a PC having IE 11 browser. But in that case i get error as mentioned.

Can anyone please tell me Why does this error comes? and How it can be solved?