http://download.virtualbox.org/virtualbox/4.0.0_BETA4/VirtualBox-4.0.0_BETA4 -69073-Win.exe This version is a major update. The following major new features were added: Reorganization of VirtualBox into a base package and Extension Packs; see chapter 1.5, Installing VirtualBox and extension packs, page 14 New settings/disk file layout for VM portability; see chapter 10.1, Where VirtualBox stores its files, page 149 Major rework of the GUI (now called “VirtualBox Manager”): – Redesigned user interface with guest window preview (also for screenshots) – New “scale” display mode with scaled guest display; see chapter 1.8.5, Resizing the machine’s window, page 21 – Support for creating and starting .vbox desktop shortcuts (bug #1889) – The VM list is now sortable – 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) – Built-in creation of desktop file 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: – Intel ICH9 chipset with three PCI buses, PCI Express and Message Signaled Interrupts (MSI); see chapter 3.4.1, “Motherboard” tab, page 43 – 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, page 26): – Open Virtualization Format Archive (OVA) support – Significant performance improvements during export and import – Creation of the manifest file on export is optional now – Imported disks can have formats other than VMDK Resource control: added support for limiting a VM’s CPU time and IO bandwidth; see chapter 5.8, Limiting bandwidth for disk images, page 81 Storage: support asynchronous I/O for iSCSI, VMDK, VHD and Parallels images Storage: support for resizing VDI and VHD images; see chapter 8.19, VBoxManage modifyhd, page 122. 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 In addition, the following items were fixed and/or added: VMM: Enable large page support by default on 64-bit hosts (applies to nested paging only) VMM: fixed guru meditation when running Minix (VT-x only; bug #6557) VMM: fixed crash under certain circumstances (Linux hosts only, non VT-x/AMD-V mode only; bugs #4529 and #7819) GUI: add configuration dialog for port forwarding in NAT mode (bug #1657) GUI: show the guest window content on save and restore GUI: certain GUI warnings don’t stop the VM output anymore GUI: fixed 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 filtering 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: fixed 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: fixed OpenGL support for libMesa 7.9 2D Video acceleration: multimonitor support VRDP: fixed rare crash in multimonitor configuration VRDP: support for upstream audio Display: fixed 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 files, taking this as the criteria for making the medium readonly (bug #5651) Audio: fixed 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 fix) OVF/OVA: fixed 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 file Windows Additions: automatic logon on Windows Vista/Windows 7 is now able to handle renamed user accounts; added various bugfixes --

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