VirtualBox 是由德国 InnoTek 这家软体公司出品的软件，它提供使用者在 32 位的 Windows 及 Linux 作业系统上虚拟另外的机器执行其它 x86 的操作系统，使用者可以在 VirtualBox 上执行 Windows、Linux、OS/2 Warp、OpenBSD 及 FreeBSD 等系统作为客户机操作系统。在 2007 年 1 月，InnoTek 以 GNU General Public License (GPL) 释出 VirtualBox，并提供二进位版本及开放源码版本的代码。
VirtualBox 1.6.0正式版主要增加的功能：
* Solaris and Mac OS X host support
* Seamless windowing for Linux and Solaris guests
* Guest Additions for Solaris
* A webservice API
* SATA hard disk (AHCI) controller
* Experimental Physical Address Extension (PAE) support
修正的问题：
* GUI: added accessibility support (508)
* GUI: VM session information dialog
* VBoxHeadless: renamed from VBoxVRDP
* VMM: reduced host CPU load of idle guests
* VMM: many fixes for VT-x/SVM hardware-supported virtualization
* ATA/IDE: better disk geometry compatibility with VMware images
* ATA/IDE: virtualize an AHCI controller
* Storage: better write optimization, prevent images from growing unnecessarily.
* Network: support PXE booting with NAT
* Network: fixed the Am79C973 PCNet emulation for Nexenta guests
* NAT: improved builtin DHCP server (implemented DHCPNAK response)
* NAT: port forwarding stopped when restoring the VM from a saved state
* NAT: make subnet configurable
* XPCOM: moved to libxml2
* XPCOM: fixed VBoxSVC autostart race
* Audio: SoundBlaster 16 emulation
* USB: fixed problems with USB 2.0 devices
* MacOS X: fixed seamless mode
* MacOS X: better desktop integration, several look’n’feel fixes
* MacOS X: switched to Quartz2D framebuffer
* MacOS X: added support for shared folders
* MacOS X: added support for clipboard integration
* Solaris: added host audio playback support (experimental)
* Solaris: made it possible to run VirtualBox from non-global zones
* Shared Folders: made them work for NT4 guests
* Shared Folders: many bugfixes to improve stability
* Seamless windows: added support for Linux guests
* Linux installer: support DKMS for compiling the kernel module
* Linux host: compatibility fixes with Linux 2.6.25
* Windows host: support for USB devices has been significantly improved; many additional USB devices now work
* Windows Additions: automatically install AMD PCNet drivers on Vista guests
* Linux additions: several fixes, experimental support for RandR 1.2
* Linux additions: compatibility fixes with Linux 2.6.25
附Ubuntu 8.04的VirtualBox 1.6.0正式版Deb包下载地址：
http://cds.sun.com/is-bin/INTERSHOP.enfinity/WFS/CDS-CDS_SMI-Site/en_US/-/USD/VerifyItem-Start/virtualbox_1.6.0-30421_Ubuntu_hardy_i386.deb
