Public Function RenameOperation(strSourceName As String, strTargetName As String)
'*******************************************
'Name:      RenameOperation (Function)
'Purpose:   Umbenennen von Dateien und Verzeichnissen
'Author:    Tommyk
'Date:      März 11, 2004, 04:23:48
'Inputs:    strSourceName=Name der Quelldatei oder Pfad
'           strTargetName=Neuer Name der Quelldatei oder Pfad
'Output:
'*******************************************
Dim shellinfo As SHFILEOPSTRUCT
With shellinfo
        .hWnd = Screen.ActiveForm.hWnd
        .wFunc = FO_RENAME
        .pFrom = strSourceName
        .pTo = strTargetName
        .fFlags = FOF_RENAMEONCOLLISION
End With
    RenameOperation = (0 = SHFileOperation(shellinfo))
End Function

RenameOperation "H:\Test\Crypter_New.dll", "H:\Test\Crypter_New_1.dll"