Changes

* Xen (open-source hypervisor developed for the Linux kernel)

* UnRAID (commercial NAS distribution with an integrated hypervisor)

==Integrations==

Many type 2 hypervisors include some sort of additional software that can be installed in a guest. This software listens to the hypervisor and facilitates communication between the guest and host, allowing for features like automatic screen resizing (where the host measures the height and width of the window and sends an optimal size for the guest to resize the display to), clipboard sharing (where anything copied on the host can be pasted in the guest), shared folders (where a directory on the host can be made available for access from a guest using a built-in file server and a direct network connection to the guest), and mouse integration (where the hypervisor emulates an absolute pointing device like a drawing tablet to give the impression that moving the cursor in and out of the machine's display is seamless). Three hypervisors are known to have them;