If you are upgrading from a previous version of Synchronet Notifier, before version 1.3c, you need to do the following: 1) Copy the new NOTIFIER.EXE over the old. 2) Copy the new NOTIFIER.CFG over the old. 3) Copy the new MESSAGE.DAT over the old. That should do it... **** N O T E **** If you are upgrading from verion 1.0, please just completely re-install.