My company utilizines Exchange 2003 Server Enterprise Edition on a Windows 2003 Server on a dual P4 Xeon server with RAID 5. I'm having a difficult time getting them to invest in a legitimate backup system due to relatively slow business. I've come up with the idea of backing everything up onto an external hard drive but want to be sure I am not forgetting anything. In addition to the .log and .mml files what else should I be backing up? Also, besides the typical copy and paste from one drive to the next are there any steps I need to take while doing this such as shutting down the Exchange services or can I leave them running while doing this?