What "list" would that be? Listbox, Combobox, some grid, multi line text, etc.. 
In case you need to search Listbox or combo try this:
Code:
Option Explicit
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 Const LB_FINDSTRINGEXACT = &H1A2
Private Const CB_FINDSTRING = &H14C
Private Sub Command1_Click()
Dim strText As String
'''strText = InputBox("Prompt", "Title", "search text")
strText = Text1.Text
List1.ListIndex = SendMessage(List1.hwnd, LB_FINDSTRINGEXACT, -1, ByVal strText)
End Sub