- <varname>microsoft</varname>,
- <varname>oracle</varname>, <varname>xen</varname>,
- <varname>bochs</varname>, <varname>chroot</varname>,
- <varname>uml</varname>,
+ <varname>microsoft</varname> (Hyper-V, also known as
+ Viridian or Windows Server Virtualization),
+ <varname>oracle</varname> (VirtualBox),
+ <varname>xen</varname>, <varname>bochs</varname>,
+ <varname>chroot</varname>, <varname>uml</varname>,