Download VirtualBox 4.1.22 Build 80657

VirtualBox 4.1.22 Build 80657 is now available for download. This update is a maintenance release which contains a number of bug fixes and several stability improvements over the previous release. The full details about what changes are in this build are available in the "What's new in VirtualBox 4.1.22 Build 80657" section.

Overview
VirtualBox or Oracle VM VirtualBox is a powerful x86 and AMD64/Intel64 virtualization product for enterprise as well as home use. Not only is VirtualBox an extremely feature rich, high performance product for enterprise customers, it is also the only professional solution that is freely available as Open Source Software under the terms of the GNU General Public License (GPL).

As of version 4.0, VirtualBox introduces the Extension Pack mechanism which allows Oracle and 3rd parties to deliver additional functionality on top of the standard Open Source product.

Presently, VirtualBox runs on Windows, Linux, Macintosh and OpenSolaris hosts and supports a large number of guest operating systems including but not limited to Windows (NT 4.0, 2000, XP, Server 2003, Vista, Windows 7), DOS/Windows 3.x, Linux (2.4 and 2.6), Solaris and OpenSolaris, and OpenBSD.

Download VirtualBox 4.1.22 Build 80657
The links in this section correspond to files available for VirtualBox 4.1.22 Build 80657. Download the files appropriate for you.

• Download VirtualBox 4.1.22 Build 80657 for Windows hosts
• Download VirtualBox 4.1.22 Build 80657 for MAC OS X hosts
• Download VirtualBox 4.1.22 Build 80657 for Linux hosts

What's new in VirtualBox 4.1.22 Build 80657 (September 7, 2012)
This version is a maintenance release. The following items were fixed and/or added:

• VMM: fixed a potential host crash triggered by shutting down a VM when another VM was running (only affected 32-bit hosts and 64-bit OS X hosts, 4.1 regression, bug #9897)
• VMM: fixed a potential host crash under a high guest memory pressure (seen with Windows 8 guests)
• VMM: respect RAM preallocation while restoring saved state.
• VMM: fixed handling of task gates if VT-x/AMD-V is disabled
• Storage: fixed audio CD passthrough for certain media players
• USB: don't crash if a USB device is plugged or unplugged when saving or loading the VM state (SMP guests only)
• RTC: fixed a potential corruption of CMOS bank 1
• Mac OS X hosts: installer fixes for Leopard (4.1.20 regression)
• Windows Additions: fixed memory leak in VBoxTray (bug #10808) 

Source:

• Changelog for VirtualBox 4.1