Problems adding VBA code to word 2010!

[spookiepower]

I a short VBA code I need to add to my doc, and that needs to be run each time the doc is being opened.



I have found out that to open the VBA editor I need to press Alt+F11, and copy this code -

Private Sub Document_Open()
ActiveDocument.Windows(1).View.ShadeEditableRanges = False
End Sub

But when I click Save, I get the message, that I can't add this code to a document without macros!

What must I do now, to get it to work ?

- Kim -