You can do it, hope the following code helps you. Creat a combox. In the
document open add your list like hotmail.com, yahoo.com etc.
In the click event of the combobox write the following code
Dim addstring As String
addstring = "http://www." & ComboBox1.Text
ActiveDocument.FollowHyperlink Address:=addstring, NewWindow:=True
Hope this helped you.