VMware ESXi, the hypervisor architecture that sets the industry standard for reliability, performance and ecosystem support. VMware vSphere Hypervisor is the easiest way to get started with virtualization -- and it's free. Consolidate your applications onto fewer servers and start saving money through reduced hardware, power, cooling and administration costs.

{titlexen0000} is the fastest and most secure infrastructure virtualization solution available today. Xen provides an abstraction layer that allows a physical server to run one or more 'virtual servers', effectively decoupling the operating system and its applications from the underlying physical server.

Parallels Virtuozzo Containers is the industry-leading operating system virtualization solution. Virtuozzo creates multiple, independent containers on a single physical server and OS instance. Each container holds an independent virtual environment complete with its own operating system.

VMware ESXi, the hypervisor architecture that sets the industry standard for reliability, performance and ecosystem support. VMware vSphere Hypervisor is the easiest way to get started with virtualization -- and it's free. Consolidate your applications onto fewer servers and start saving money through reduced hardware, power, cooling and administration costs.

MicroSoft Hyper-V Server 2008R2 provides a reliable and optimized virtualization solution, enabling improved server utilization and reduced costs. Since Hyper-V Server is a dedicated standalone product, which contains only Windows Hypervisor and the virtualization components, it provides a small footprint and minimal overhead.