Additional software packages
SSH client (terminal and file transfer)
Server for APC UPS which is only needed to interface with an UPS
NTP settings
To enable NTP controlled system clock
net stop w32time net time /setsntp:ntp1.rzg.mpg.de net start w32time
Don't forget to set the Startup Type of the Windows Time service to Automatic. The way to go is Settings -> Control Panel -> Administrative Tools -> Services