Overview
VirtualBox or Oracle VM VirtualBox is a powerful x86 and AMD64/Intel64 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 (GPL).
As of version 4.0, VirtualBox introduces the Extension Pack mechanism which allows Oracle and 3rd parties to deliver additional functionality on top of the standard Open Source product.
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.
Download VirtualBox 4.2.2 Build 81494
The links in this section correspond to files available for VirtualBox 4.2.2 Build 81494. Download the files appropriate for you.
- Download VirtualBox 4.2.2 Build 81494 for Windows hosts
- Download VirtualBox 4.2.2 Build 81494 for Mac OS X hosts
- Download VirtualBox 4.2.2 Build 81494 for Linux hosts
What's new in VirtualBox 4.2.2 Build 81494 (October 18, 2012)
This is a maintenance release. The following items were fixed and/or added:
- VMM: adapted to changes in Mac OS X 10.8.2 (bug #10965)
- GUI: restored VM item tool-tip functionality (4.2 regression)
- GUI: added group item tool-tip functionality
- GUI: fixed handling of the .ova/.ovf file name association (4.2 regression)
- GUI: it was not possible to change any setting before the first VM was created (bug #10928)
- GUI: disable grouping action if all the selected items are full children list of the same group already
- GUI: added menu for runtime drag-and-drop option change
- GUI: cleanup shared-clipboard menu on visual-mode change
- GUI: make sure VM receives keyboard focus on entering fullscreen-mode on Win host (bug #11051)
- GUI: disable proxy authentication for security reasons
- 3D Support: DrawIndexedPrimitiveUP implementation fixes for the Windows WDDM video driver (bug #10929)
- Storage: fixed a release assertion in the AHCI emulation when requests where canceled with asynchronous I/O disabled
- Storage: fixed a hang during VM reset under certain circumstances (bug #10898)
- NAT: fixed a crash under rare circumstances (Windows hosts only; bug #10128)
- NAT: automatically use the host resolver if the host name server is set to some unusual loopback value (bug #10864)
- E1000: fixed a VirtualBox crash during intensive network transfers (4.2 regression; bugs #10936, #10969, #10980)
- ICH9: fixed PCI bridge initialization
- USB mouse: ensure that the last mouse event doesn't get lost if no URBs are available
- BIOS: certain legacy guests (e.g. Windows 95) didn't find the boot device after a warm reboot
- BIOS: don't trash the palette in text modes when setting the border color
- EFI: fixed OS X guest autoboot (4.2 regression)
- VBoxManage: fixed output of showvminfo --machinereadable (bug #10973)
- VBoxManage: fixed parsing of storageattach --discard (bug #11023)
- VBoxManage: fixed wrong output of the HPET setting in showvminfo (bug #11065)
- VBoxManage: fixed closing the guest session after executing a guest process via guest control
- VBoxShell: adaptions to interface name changes
- Guest Additions device: fixed a Guest Additions hang when a machine was reset after a crash
- Linux hosts / guests: Linux 3.7-rc1 fixes
- Linux Additions: support X.Org Server 1.13
- Linux Additions: fixed a hang when the X server was restarted with old guest kernels
- Linux Additions: fixed a VBoxService crash during CPU hot remove (bug #10964)
- Windows Additions: fixed automatic screen resize issue for NT4 guests
- OS/2 Additions: fixed shutdown hang
- OS/2 Additions: fixed mouse driver panic
- Solaris hosts: fixed autostart service going into maintenance mode after all VMs started
- Solaris hosts: fixed linking the host driver with the dtrace module
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