VirtualBox 4.0.0 Beta 4

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 4.0.0 Beta 4
File Size:: 75.5 MB
Requirements:: Windows XP / Vista / Windows7 / XP64 / Vista64 / Windows7 64 / Windows8 / Windows8 64
Language:: en-us
License:: Open Source
Date Added:: 17 Dec 2010
Publisher:: Oracle
Homepage:: http://www.oracle.com
MD5 Checksum:: F6C60BFED5F4145CBFECC494E29B42A6

#The following major new features were added:
- Reorganization of VirtualBox into a base package and Extension Packs;
- New settings/disk ï¬le layout for VM portability; see chapter 10.1, Where VirtualBox stores its ï¬les,

* Major rework of the GUI (now called â€œVirtualBox Managerâ€):
â€“ Redesigned user interface with guest window preview (also for screenshots)
â€“ New â€œscaleâ€ display mode with scaled guest display; see chapter 1.8.5, Resizing themachineâ€™s window,
â€“ Support for creating and starting .vbox desktop shortcuts (bug #1889)
â€“ The VM list is now sortable
â€“ Machines can now be deleted easily without a trace including snapshots and saved states, and optionally including attached disk images (bug #5511; also, VBoxManage unregistervm --delete can do the same now)
â€“ Built-in creation of desktop ï¬le shortcuts to start VMs on double click (bug #2322)
* VMM: support more than 1.5/2 GB guest RAM on 32-bit hosts

* New virtual hardware:
â€“ Intel ICH9 chipset with three PCI buses, PCI Express and Message Signaled Interrupts (MSI); see chapter 3.4.1, â€œMotherboardâ€ tab,
â€“ Intel HD Audio, for better support of modern guest operating systems (e.g. 64-bit Windows; bug #2785)

* Improvements to OVF support (see chapter 1.12, Importing and exporting virtual machines,
â€“ Open Virtualization Format Archive (OVA) support
â€“ Signiï¬cant performance improvements during export and import
â€“ Creation of the manifest ï¬le on export is optional now
â€“ Imported disks can have formats other than VMDK

* Resource control: added support for limiting a VMâ€™s CPU time and IO bandwidth;
* Storage: support asynchronous I/O for iSCSI, VMDK, VHD and Parallels images
* Storage: support for resizing VDI and VHD images;
* Guest Additions: support for multiple virtual screens in Linux and Solaris guests using X.Org server 1.3 and later
* Language bindings: uniform Java bindings for both local (COM/XPCOM) and remote (SOAP) invocation APIs

# Fixes -

- VMM: Enable large page support by default on 64-bit hosts (applies to nested paging only)
- VMM: ï¬xed guru meditation when running Minix (VT-x only; bug #6557)
- VMM: ï¬xed crash under certain circumstances (Linux hosts only, non VT-x/AMD-V mode only; bugs #4529 and #7819)
- GUI: add conï¬guration dialog for port forwarding in NAT mode (bug #1657)
- GUI: show the guest window content on save and restore
- GUI: certain GUI warnings donâ€™t stop the VM output anymore
- GUI: ï¬xed black fullscreen minitoolbar on KDE4 hosts (Linux hosts only; bug #5449)
- BIOS: implemented multi-sector reading to speed up booting of certain guests (e.g. Solaris)
- Bridged networking: improved throughput by ï¬ltering out outgoing packets intended for the host before they reach the physical network (Linux hosts only; bug #7792)
- 3D support: allow use of CR_SYSTEM_GL_PATH again (bug #6864)
- 3D support: ï¬xed various clipping/visibility issues (bugs #5659, #5794, #5848, #6018,#6187, #6570)
- 3D support: guest application stack corruption when using glGetVertexAttrib[ifd]v (bug #7395)
- 3D support: ï¬xed OpenGL support for libMesa 7.9
- 2D Video acceleration: multimonitor support
- VRDP: ï¬xed rare crash in multimonitor conï¬guration
- VRDP: support for upstream audio
- Display: ï¬xed occasional guest resize crash
- NAT: port forwarding rules can be applied at runtime
- SATA: allow to attach CD/DVD-ROM drives including passthrough (bug #7058)
- Floppy: support readonly image ï¬les, taking this as the criteria for making the medium readonly (bug #5651)
- Audio: ï¬xed memory corruption during playback under rare circumstances
- Audio: the DirectSound backend now allows VMs to be audible when another DirectSound application is active, including another VM (bug #5578)
- EFI: support for SATA disks and CDROMs
- BIOS: reduce the stack usage of the VESA BIOS function #4F01 (Quake ï¬x)
- OVF/OVA: ï¬xed export of VMs with iSCSI disks
- Storage: Apple DMG image support for the virtual CD/DVD (bug #6760)
- Linux host USB support: introduced a less invasive way of accessing raw USB devices (bugs #1093, #5345, #7759)
- Guest Additions: Shared Folders now can be marked as being auto-mounted on Windows, Linux and Solaris guests Linux Additions: Shared Folders now support symbolic links (bug #818)
- Linux Additions: combined 32-bit and 64-bit additions into one ï¬le
- Windows Additions: automatic logon on Windows Vista/Windows 7 is now able to handle renamed user accounts; added various bugï¬xes