Software Update: VirtualBox 4.3.2

Oracle has released version 4.3.2 of VirtualBox. VirtualBox can be used to install other operating systems in a virtual environment on a computer. In this way it is possible to use different operating systems on the same hardware side by side and at the same time. VirtualBox is available for Windows XP and above, OS X, Linux, and Solaris, and is capable of many guest operating systems to turn.

In version 4.3 of VirtualBox, among other things, the complete virtualization code has been rewritten, which has solved several problems and also shows several performance improvements. Furthermore, there is video capture and support for ipv6, several virtual machines running on the same computer can now communicate with each other via the internal network and there is support for multi-touch screens. This first update also includes the following improvements:

The following items were fixed and/or added:

• VMM: fixed restoring of the auxiliary TSC MSR in VT-x that caused host BSODs on Windows 8.1 hosts and unpredictable behavior on other hosts (bug #12237)
• VMM: provide fake values ​​for a couple of MSRs to make more guests happy on certain hosts
• VMM: fixed detection of VT-x on certain machines where the BIOS would not set the VMX LOCK feature bit, which affected the VM settings in the GUI
• VMM: fixed TPR threshold which caused BSODs on Windows XP guests that use the I/O APIC (VT-x only; bug #12227)
• VMM: fixed PATM saved state incompatibility for software virtualized VMs (bug #12222)
• VMM: don’t fail if AMD-V isn’t available if the VM is configured to use software virtualization
• GUI: fixed guest resize breakage on visual representation mode change (when switching from normal to fullscreen etc)
• GUI: make sure the guest screen is resized after restoring a VM from a saved state if the host screen size changed
• GUI: disabled SCROLL LED sync from HID LEDs synchronization (Mac OS X hosts only)
• Webcam passthrough improvements including GUI support (see the manual for more information)
• Guest Control: implemented more IGuestSession methods
• Guest Control: added support for deleting and renaming guest files + directories in VBoxManage
• Guest Control: various bug fixes
• API: incorrect handling of hardware UUID default value, resulting in an all zero DMI/SMBIOS UUID, which leads to Windows requesting re-activation (4.3 regression; bug #12244)
• 3D support: fixed crash on shutdown if 2D video acceleration is enabled (Mac OS X hosts only)
• 3D support: miscellaneous fixes
• Storage: fixed detection of CD/DVD media when switching from an empty to a host drive with passthrough enabled
• Storage: fixed hang of the VM process when the disk is full under certain circumstances
• NAT: listen for changes of NAT Network setting at runtime
• NAT: NAT Network DHCP server now saves leases to a persistent storage
• Main: monitor changes in host DNS configuration
• Mac OS X host: reworked a mechanism of adding a VM desktop alias from the VM selector
• Mac OS X installer: remove old kernel extensions during upgrade (bug #12258)
• Linux Additions: correctly set umask before installing (bug #12166)
• X11 Additions/3D: fix freezes starting 3D desktop (bug #11503thank you Sam Spilsbury)
• X11 Additions/3D: fix depth buffer support (bug #11905)
• X11 Additions/3D: fix Age Of Empires 3 rendering (bug #11331)
• Windows Additions/3D: fix Google Earth plugin rendering
• Windows Additions/WDDM: autoresize fixes