下载：免费虚拟机软件VirtualBox 3.2.4.62431

      VirtualBox最早是德国一家软件公司InnoTek所开发的虚拟系统软件,后来被Sun收购,改名为Sun VirtualBox,在Sun被Oracle收购后现改名为Oracle VirtualBox.因为他是开源的,不同于VM,而且功能强大,可以在 Linux/Mac 和 Windows 主机中运行, 并 支持在其中安装 windows (NT 4.0、2000、XP、Server 2003、Vista)、DOS/Windows 3.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。

 

下载:VirtualBox 3.2.4.62431

Changes in VirtualBox 3.2.2 (released 2010-06-02):
    * VMM: fixed rare invalid guest state guru meditation (VT-x only)
    * VMM: fixed poor performance with nested paging and unrestricted guest execution (VT-x only; bug #6716)
    * VMM: fixed occasional guru meditation during Windows 7 bootup (bug #6728)
    * GUI: Keep the status for remote Control in sync with the actual state
    * GUI: don't exit after a successful refresh of an invalid VM configuration
    * GUI: fixed keyboard capturing bug under metacity (bug #6727)
    * GUI: fixed crash during VM termination if a modal dialog is open
    * GUI: default controllers names of New VM Wizard are synchronized with VM settings
    * GUI: fixed Superfluous resize-event on powering-on VM for X11
    * GUI: fixed regression - missed USB item's tool-tip of USB devices menu
    * GUI: Activate VM window on mouse-hovering for multi-monitor VMs
    * VBoxSDL/Linux hosts: automated keyboard type detection (bug #5764)
    * SATA: fixed crash during VM suspend under rare circumstances
    * SATA: fixed crash during VM reset after a snapshot was taken

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    * Storage: fixed sporadic hang of SMP guests using SATA or LSI Logic SCSI and asynchronous I/O
    * Virtio-net: fix for guests with more than about 4GB RAM (bug #6784)
    * Page Fusion: fixed VBoxService crash with enabled Page Fusion on Win64 guests
    * Page Fusion: added kernel module sharing
    * HGCM: fixed memory leak which showed up if the Guest Additions were Accessing a non-existing HGCM service
    * Teleportation: several fixes
    * Floppy: don't disable the host I/O cache by default
    * USB: fixed 3.1 regression with certain devices (e.g. iPhone); Windows host only
    * Serial: updated the guest device emulation to 16550A and reduced the probability for loosing bytes during transmission (bug #1548)
    * NAT: re-fetch the name server parameters from the host on guest DHCP requests to handle host network switches more gracefully (bug #3847)
    * NAT: fixed parsing of IPv4 addresses in CIDR notation (bug #6797)
    * NAT: limit the number of name servers passed to the guest to four (non-Windows hosts only; bug #4098)
    * NAT: fixed DNS transaction id mismatch (bug #6833)
    * VDE: fixed changing the attachment during runTIMe
    * Bridged Networking: fixed memory leak in the Bridged Networking driver for Windows hosts (bug #6824)
    * Windows Additions: fix for NT4 guests (bug #6748)
    * Windows Additions: re-introduced system preparation feature
    * Linux guests: enable PAE for RedHat guests by default
    * Linux guests: fix support for disabling mouse integration (bug #6714)
    * Webservice: fixed a rare crash when calling IGuest methods from the webservice.
    * OVF: fixed wrong hard disk UUIDs on export (bug #6802)

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    * OVF: fixed 3.2.0 regression importing legacy OVF 0.9 files
    * 3D support: fixed OpenGL support for 64bit apps on windows guests
    * 3D support: fixed various host crashes (#2954, #5713, #6443)