VirtualBox 4.2.0 RC2

Oracle - (Open Source)

VirtualBox is an easy and elegant solution for those who want to control a computer from another computer.

VirtualBox offers virtualize your operating system (OS) guests on a host machine. Called hypervisor, the application supports Windows OS X, Linux, Mac, Solaris, FreeBSD, etc.. as host, Mac OS X missing the call as a guest.

It also includes a remote access via HTTP protocol, convenient for demonstrations on a clean system.Â The ability to manage multiple states of the system is particularly interesting and its interface is very simple.

Virtualization solutions allow installing an operating system on a virtual machine using the resources of the host PC , thus enjoying very good performance. In the genre, several solutions are known for their ease of use, such as VMware Workstation , Parallels Desktop or Microsoft Virtual PC 2007 SP1.

A virtual machine is a useful way to use two operating systems simultaneously and harmless to the host computer. There is the possibility to install Linux on a virtual machine on Windows and vice versa .

Title:: VirtualBox 4.2.0 RC2
File Size:: 89.7 MB
Requirements:: Windows XP / Vista / Windows7 / XP64 / Vista64 / Windows7 64 / Windows8 / Windows8 64
Language:: en-us
License:: Open Source
Date Added:: 22 Aug 2012
Publisher:: Oracle
Homepage:: http://www.oracle.com
MD5 Checksum:: F88735DDF4BBFB1B4258AC2F42053B9F

# The following major new features were added:
* Improved Windows 8 support, in particular many 3D-related fixes
* GUI: VM groups
* GUI: expert mode for wizards
* GUI: allow to alter some settings during runtime
* Support for up to 36 network cards, in combination with an ICH9 chipset configuration
* Resource control: added support for limiting network IO bandwidth; see Section 6.9, â€œLimiting bandwidth for network I/Oâ€
* Added possibility to start VMs during system boot on Linux, OS X and Solaris; see Section 9.24, â€œStarting virtual machines during system bootâ€
* Added experimental support for Drag'n'drop from the host to Linux guests. Support for more guests and for guest-to-host is planned.
* Added support for parallel port passthrough on Windows hosts
* Enhanced API for controlling the guest; please see the SDK reference and API documentation for more information
# In addition, the following items were fixed and/or added:
* Mac OS X hosts: sign application and installer to avoid warnings on Mountain Lion
* VMM: improved VM context switch performance for Intel CPUs using nested paging
* VMM: added support for FlushByASID features of AMD CPUs (Bulldozer and newer)
* VMM: fixed unreal mode handling on older CPUs with VT-x (gPXE, Solaris 7/8/9; bug #9941)
* VMM: fixed MP tables fixes for I/O APIC interrupt routing relevant for ancient SMP guests (e.g. old OS/2 releases)
* VMM: support recent VIA CPUs
* GUI: network operations manager
* GUI: allow taking screenshots of the current VM window content
* GUI: allow automatically sorting of the VM list
* GUI: allow starting of headless VMs from the GUI
* GUI: allow reset, shutdown and poweroff from the Manager window
* GUI: allow to globally limit the maximum screen resolution for guests
* GUI: show the full medium part on hovering the list of recently used ISO images
* GUI: do not create additional folders when a new machine has a separator character in its name
* GUI: don't crash on terminate if the settings dialog is still open
* Snapshots: fixed a crash when restoring an old snapshot when powering off a VM
* Settings: sanitise the name of VM folders and settings file
* Settings: allow to store the iSCSI initiator secret encrypted
* E1000: 802.1q VLAN support
* Storage: implemented burning of audio CDs in passthrough mode
* Storage: implemented support for discarding unused image blocks through TRIM for SATA and IDE and UNMAP for SCSI when using VDI images
* Storage: added support for QED images
* Storage: added support for QCOW (full support for v1 and readonly support for v2 images)
* Storage: added readonly support for VHDX images
* Solaris additions: added support for X.org Server 1.11 and 1.12
* Windows hosts: no need to recreate host-only adapters after a VirtualBox update
* Windows hosts: updated toolchain; make the source code compatible to VC 2010 and enable some security-related compiler options
* NAT: improvements for the built-in TFTP server