def UnBlock(self):
        selItem=self.fileListBox.GetSelectedItem()
        select = selItem.GetText()
        self.ReplaceFileString(select+"\n", "", "whisperblock.txt")
        self.__ClearFileList()
        handle = app.OpenTextFile("whisperblock.txt")
        count = app.GetTextFileLineCount(handle)
        for i in xrange(count):
            line = app.GetTextFileLine(handle, i)
            tokens = line.split("\n")
            self.fileListBox.AppendItem(Item(tokens[0]))

        app.CloseTextFile(handle)