对于VMWare、VirtualPC这些虚拟机软件，可能大家都比较熟悉。VirtualBox是德国一家软件公司InnoTek所开发的虚拟系统软 件，它不仅具有丰富的特色，而且性能也很优异。更是开源的，成为了一个发布在GPL许可之下的自由软件。VirtualBox 可以在 Linux 和Windows主机中运行，并支持在其中安装 Windows (NT 4.0、2000、XP、Server2003、Vista)、DOS/Windows3.x、Linux (2.4 和 2.6)、OpenBSD等系列的客户操作系统。假如你曾经有用过虚拟机软件的经历的话，相信使用VirtualBox不在话下。即便你是一个新手，也没 有关系。VirtualBox 提供了详细的文档，可以助你在短期内入门。

• GUI: fixed a bug which prevented to add more than one SATA drive from the GUI
• GUI: fixed a regression introduced in 1.6.0: the fullscreen mode was left on every guest video mode switch
• GUI: fixed several minor issues
• Networking: fixed a host interface networking regression introduced in 1.6.0
• VMM: fixed starting of VMs with AMD-V enabled
• VMM: massive performance enhancements for AMD-V
• VMM: stability improvements for AMD-V on Windows hosts
• VMM: correctly detect AMD CPUs with erratum 170 (AMD-V)
• VMM: detect inconsistent timestamp counters on certain AMD Phenom CPUs (Windows host only)
• VMM: fixed KVM check (Linux hosts only) XPCOM: fixed several races
• VMM: ?xed a regression introduced in 1.6.0: Windows stuck during installation
• SATA: improved performance with Vista guests
• SATA: fixed statistics counter
• Shared Folders: several fixes (iTunes download, speed up browsing)
• ATA/IDE: fixed boot from CDROM if a medium was added while the boot menu was active
• Networking: provide an Intel PRO/1000 T Server (82543GC) network device emulation which is recognized by Windows XP guests
• Networking: fixes for the E1000 emulation (don't crash if not attached, fixed a bug in the statistics counter implementation)
• NAT: don't crash if the guest sent a DHCPRELEASE message with an invalid IP address
• NAT: fixed ARP reply for the NAT gateway and for the NAT name server if the guest IP range was changed
• Internal Networking: fixed shutdown if more than two VMs are connected to the same network
• BIOS: allow to change the DMI informatiton (see chapter 9.13, Con'guring the BIOS DMI information, page 125)
• RTC: fixed UIP emulation to prevent jumping of time in Solaris guests
• Windows host: VirtualBox installation directory corrected for 64 bits Windows
• Windows host: fixed VBoxVRDP.exe symlink
• Windows host: solved locking problems in raw partition VMDK support
• Windows host: fixed stability during high system load (page fault in KeQueryActiveProcessors)
• MacOS X host: fixed crashes under certain conditions
• Shared Folders: limited users without admin rights now also can use Shared Folders on Windows guests
• Linux hosts: fixed default runlevel for the kernel module helper script
• Solaris hosts: enabled support for VT-x and AMD-V
• Solaris hosts: dynamic loading of libdlpi fixes a problem where Solaris 10 was not able to start a VM
• Linux additions: fixed runlevels for kernel module helper scripts
• Linux additions: compatibility fixes with Linux 2.6.26
• Linux additions: fixed occasional guest kernel crash during unload of the vboxadd guest kernel module