I have installed XAMPP 1.7.1 on Windows Vista. After installing I edit the Windows/System32/drivers/etc/Hosts file adding http://www.example.com, http://mail.example.com, http://example.com to the end of the file. Everything works great except that every couple of days my edited file is replace by an original version of the file minus my edits, causing me to have to go back and re-edit the file. Does anyone have any idea why this is happening and how to stop it.