'make a new project, a form and a listbox (name List1)
'insert the code
'press f5

Private Declare Function SendMessage Lib "user32" 
alias
 "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Const LB_FINDSTRING = &H18F

Private 
sub
 Text1_Change()
	List1.ListIndex = SendMessage(List1.hwnd, LB_FINDSTRING, -1, ByVal CStr(Text1.Text))
End Sub