Modular virtual machine server

A simple to customize IT infrastructure architecture. The IT infrastructure architecture includes a general-purpose virtualized architecture platform. The IT infrastructure architecture is well suited for delivering simple pre-packaged software solutions to the small business segment as plug and play type appliances. In certain preferred embodiments, the IT infrastructure architecture includes a virtual appliance memory device such as a virtual appliance universal serial bus (USB) key. The IT infrastructure architecture uses embedded server virtualization technology to host business applications as a virtual appliance.