In Windows Vista, you use a program’s Save As dialog box to save a file by using the name of another file. You select the file name from the history list in the File name box. However, the changes are not saved by using this file name. Instead, the original file is overwritten.

For example, you have two files that are named notepad1 and notepad2. You modify the notepad1 file, and you want to save the changes to a file that is named notepad2. However, your changes are saved to the notepad1 file. The earlier contents of the notepad1 file are overwritten.