VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software. VirtualBox is a powerful x86 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License. Presently, VirtualBox runs on Windows, Linux, Macintosh and OpenSolaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7), DOS/Windows 3.x, Linux (2.4 and 2.6), Solaris and OpenSolaris, and OpenBSD. VirtualBox is being actively developed with frequent releases and has an ever growing list of features, supported guest operating systems and platforms it runs on.

Some of the features of VirtualBox are:
• Modularity. VirtualBox has an extremely modular design with well-defined internal programming interfaces and a client/server design. This makes it easy to control it from several interfaces at once: for example, you can start a virtual machine in a typical virtual machine GUI and then control that machine from the command line, or possibly remotely. VirtualBox also comes with a full Software Development Kit: even though it is Open Source Software, you don't have to hack the source to write a new interface for VirtualBox.
• Virtual machine descriptions in XML. The configuration settings of virtual machines are stored entirely in XML and are independent of the local machines. Virtual machine definitions can therefore easily be ported to other computers.
• Guest Additions for Windows and Linux. VirtualBox has special software that can be installed inside Windows and Linux virtual machines to improve performance and make integration much more seamless. Among the features provided by these Guest Additions are mouse pointer integration and arbitrary screen solutions (e.g. by resizing the guest window).
• Shared folders. Like many other virtualization solutions, for easy data exchange between hosts and guests, VirtualBox allows for declaring certain host directories as "shared folders", which can then be accessed from within virtual machines.

A number of extra features are available with the full VirtualBox release only (see the "Editions" page for details):
• Virtual USB Controllers. VirtualBox implements a virtual USB controller and allows you to connect arbitrary USB devices to your virtual machines without having to install device specific drivers on the host.
• Remote Desktop Protocol. Unlike any other virtualization software, VirtualBox fully supports the standard Remote Desktop Protocol (RDP). A virtual machine can act as an RDP server, allowing you to "run" the virtual machine remotely on some thin client that merely displays the RDP data.
• USB over RDP. With this unique feature, a virtual machine that acts as an RDP server can still access arbitrary USB devices that are connected on the RDP client. This way, a powerful server machine can virtualize a lot of thin clients that merely need to display RDP data and have USB devices plugged in.

Changes in VirtualBox 4.1.4 (released 2011-10-03):
* VMM: fixed PAE guests running on 32-bit hosts (4.0 regression; bug #9458)
* VMM: fixed INVALID_PARAMETER guru meditation caused by insufficient memory conditions (4.1.0 regression; bug #9240)
* VMM: fixed clobbered CPU registers during stos/lods/ins/outs emulation under rare circumstances
* VMM: another fix for 64-bit guests on recent AMD CPUs
* GUI: warn the user if he uses an outdated extension pack and allow to download and upgrade in that case (bug #8025)
* GUI: fixed spurious LCtrl key events on some Windows hosts (4.0.6 regression; bug #373)
* VBoxManage: another fix for extpack install --replace (bug #9308)
* VBoxManage: allow to specify the UUID of the target image in convertfromraw
* VRDP: fixed a rare crash when two or more clients connect to the server (bug #9503)
* VRDP: fixed a case when a client was not resized correctly (bug #9242)
* USB: make device capturing work on Windows hosts with usbhub class filter drivers installed (bug #9298); bugfixes for Windows host USB support
* VHD: fixed reads crossing block boundaries (bug #8532)
* VMDK: fixed progress indicator when creating split VMDK images
* Floppy: fixed medium size detection for physical mediums (Windows hosts only)
* Main: fixed VM initialization if a shared folder does not exist (bug #7941)
* Main: fixed possible deadlock between hard disk enumeration and resetting of immutable disks (bug #9549)
* Main: fixed not detaching of virtual storage after a snapshot restore operation (bug #8296)
* Main: always reset modified state after restoring a snapshot (bug #9387)
* Main: fixed writing of changed VM settings to disk when using snapshots (bug #8932)
* Main: fixed taking screen shots (e.g. the preview window) for headless VMs if the Guest Additions are active
* Virtio-net: fixed the problem with UDP packets exceeding MTU (bug #9370)
* 3D Support: fixed incorrect rendering and possible crashes when switching to/from fullscreen with enabled 2D acceleration
* 3D Support: fixed compiz under ubuntu 9.10
* Guest control: Miscellaneous small bugfixes
* Linux / Solaris hosts: don't use hard links in packages (4.1.2 regression; bug #9441)
* Mac OS X hosts: fix installation issues when installed as root (bug #1578)
* Mac OS X hosts: fixed packet capture issues with vboxnetX host-only interfaces (bug #8076)
* Solaris hosts: fixed incoming multicast packets for Crossbow based bridged networking (bug #9532)
* Solaris hosts: fixed starting EFI guests due to missing EFI ROM files (bug #9535)
* Windows hosts installer: fixed ADDLOCAL usage on command line (4.1.0 regression; bug #9488)
* Windows hosts installer: fixed dangling shortcut to the .chm help file (bug #9646)
* Windows hosts installer: try to fix installation error 2869 which appeared under certain circumstances (bug #9664)
* Windows hosts: VBoxHeadless should never open a separate console window (bug #3549)
* Guest Additions: fixed hang while waiting for guest execution output (4.1.2 regression; bug #9446)
* Linux Additions: add support for X.Org Server 1.11 (bug #9519)
* Linux Additions: suppress an incorrect error message and allow a shared folder to be mounted in multiple places (bug #9627)
* Linux Additions: start VBoxService correctly on openSUSE 12.1 (bug #6229)
* Linux Additions: properly finish the installation even if the compilation of the DRM module fails (which is not fatal)
* Solaris Additions: fixed memory leaks and panics while mounting (from console) and unmounting shared folders.
* Windows Additions: fixed swapped mouse cursor hotspot coordinates (4.1.0 regression; bug #9447)
* Windows Additions: fixed PAGE_FAULT_IN_NONPAGED_AREA BSOD in VBoxDisp.dll when running SnippingTool (bug #9508)
* Windows Additions: make image viewer work correctly with Aero enabled (Vista and Windows 7)
* Windows Additions: fixed incorrect window border blurs under Aero with ATI cards (Vista and Windows 7)
* Windows Additions: fixed incorrect rendering when moving 3D applications outside guest desktop and back under Aero (Vista and Windows 7)
* Windows Additions: fixed guest hangs when switching back from fullscreen text mode apps (bug #9636)

Homepage - http://www.virtualbox.org

Size: 87.3 MB



Download VirtualBox 4.1.4 for Windows

http://dlc.sun.com.edgesuite.net/vir...-74291-Win.exe

Download VirtualBox 4.1.4 for other OS

http://download.virtualbox.org/virtualbox/4.1.4/