SolVPS utilizes Xen virtualization for both Linux VPS and Windows VPS instances. 

We use a combination of Xen Paravirtualized and Xen Hardware-virtualized solutions, typically Paravirtualized (PV) for Linux VPS instances and Hardware-virtualized (HVM) for Windows VPS instances. 

It is our experience that Xen offers the best combination of performance, stability, and security for VM instance hosting, and for this reason we have chosen to employ Xen as the basis of our virtualization platform.

As an official member of the open source Xen Project (www.xenproject.org), we are committed to actively developing and supporting Xen.