VirtualBox 4.3.8 Build 92456

What's new in this version:

- VMM: more work on improving the emulation of certain MSR registers
- VMM: fixed a VERR_INVALID_RPL Guru Meditation when booting certain guests
- VMM: experimental support for SSE 4.1 / SSE 4.2 passthrough, see the manual for more information how to enable it
- VMM: fix for recent Linux kernels with software virtualization
- GUI: experimental HID LEDs synchronization for Windows hosts, see the manual for more information
- GUI: warn the user if the Oracle Extension Pack is not installed and the user tries to activate the remote display feature
- GUI: make sure that a minimized guest (using mini toolbar in fullscreen/seamless mode) keeps the minimized state
- GUI: popup banner's "do not show this message again" check-box replaced with corresponding button
- GUI: network adapter cables can now be connected/disconnected directly through the running virtual machine Devices / Network menu a Network status-bar indicator
- GUI: the new VM wizard now proposes 64-bit guests on 64-bit hosts by default; better distinction between 32-bit OS types 64-bit OS types
- GUI: better error message if appliance import fails
- GUI: allow to set host-combination to 'None' using the Global settings / Input page
- GUI: don't switch the guest to a black screen during online snapshot merge (4.3 regression)
- VBoxManage: when exporting an appliance, support the suppression of MAC addresses, which means they will be always recreated on import, avoiding duplicate MAC addresses for VMs which are imported several times
- AHCI: fixed a VM hang during suspend under certain circumstances
- AHCI: fixed a VM hang during online snapshot merge under certain circumstances
- AHCI: fixed a bug which resulted in Windows XP guest hangs if a SATA CDROM is attached
- AHCI: fixed a Guru Meditation under certain conditions
- AHCI: ejecting a CD/DVD medium failed under certain conditions
- AHCI: disk hotplugging fixes
- NAT: transparent handling of host sleep/resume and network configuration changes if the dnsproxy is enabled or if the hostresolver is used
- NAT: fixed crash and misbehavior under some circumstances with ICMP packets having TTL=1
- NAT Network: fixed IPv6 reassembly
- NAT Network: ping proxy implemented
- OVF: fixed reading of the OVF 0.9 section element (4.3 regression)
- OVF: several fixes
- 3D: several fixes, multiscreen fixes
- 3D: include 3D content in captured videos
- 3D: include 3D content in captured screenshot
- VGA: proper handling of legacy graphics modes if the Guest Additions are active
- USB: fixed crash during isochronous transfer under rare circumstances
- BIOS: better disk geometry handling of SCSI drives
- API: fix crashes in Java API clients using the XPCOM binding, happened with output parameters only
- VBoxSVC: documented the handling of host power management events (see the manual for more information) and added an extradata item for configuring the handling of the battery-low event
- VBoxSVC: fixed a bug which could trigger a crash if a VM snapshot was restored the second time and the VM has associated bandwidth groups
- VBoxSVC: properly detect ifconfig if located in /bin
- Shared Folders: fixed a failure to restore transient shared folders when starting a VM from a saved state
- Mac OS X hosts: fixed issue when the application icon was frozen in the dock if the bridging interface was not connected to a network
- Linux hosts: also consider the physical package ID when determining the number of physical CPU cores
- Linux hosts / guests: don't warn in kernel log if memory allocation fails
- Solaris hosts: fixed the autostart SMF script
- Windows hosts: fixes for non-ANSI code page user names and similar environment contents
- Windows hosts / guests: fixed setting and using a guest user's process environment variables (relevant for Guest Control)
- Windows Additions: fixed handle leaks in VBoxTray
- Windows Additions: fixed a crash while detecting active guest users
- Windows Additions: fixed restoring backed up D3D files on XPDM -> WDDM upgrade
- Guest Control: fixed setting and using a guest user's process environment variables
- Linux Additions: support Enterprise Linux 6.5 kernels
- Linux Additions: fixed CPU hot-remove on newer Linux kernels
- Linux / Solaris Additions: don't automount a shared folder which is already mounted
- X11 Additions: support X.Org Server 1.15