Autosuggestion TextBox

        To make AutoSuggesstion TextBox you just need to set the AutoComplete*** properties of TextBox Control as Follows.
        
        AutoCompleteCustomSource= 'file path where suggesstion
                                                                   words are stored or words
        AutoCompleteMode= Suggest | Append | .....
        AutoCompleteSource=CustomSource


For more details:
        http://www.vbdotnetheaven.com/Blogs/6128/autosuggestiontextbox.aspx