We developed (from concept through sale) a software/hardware package that provided remote access to unattended PCs. The PC could be left powered off and the remote access power controller would turn on the computer when a remote access was made via a phone call. The software, invoked in autoexec.bat, determined when a remote access had been initiated. The software then did security checking and callback, if desired. File transfer and remote DOS access was provided. The product also worked in conjunction with other remote access software such as CloseUp and PC Anywhere.