VirtualBox4.3.22

VirtualBox is a free and open-source virtualization software that allows users to create and run virtual machines on their computers. With VirtualBox, users can install and run multiple operating systems simultaneously on their computer without having to create separate partitions or buy additional hardware.

one of the main advantages of VirtualBox is its ease of use. It is simple to install and set up, even for those who have little or no experience with virtualization technology. VirtualBox also offers a wide range of customization options, including the ability to adjust the amount of RAM, CPU cores, and hard disk space allocated to each virtual machine.

Another great feature of VirtualBox is its compatibility with a wide range of operating systems. Users can install and run Windows, Linux, macOS, and many other operating systems on their virtual machines. This makes it an excellent tool for developers, software testers, and anyone who needs to run multiple operating systems on a single computer.

VirtualBox also offers a range of advanced features, such as support for USB devices, shared folders, and network adapters. These features make it possible to run software that requires hardware or network resources, such as virtual routers, firewalls, and servers.

VirtualBox is an excellent choice for anyone who needs to run multiple operating systems on a single computer. Its ease of use, wide range of customization options, and compatibility with many different operating systems make it a versatile and powerful tool for developers, IT professionals, and home users alike.


Key Feature:

  • Cross-platform compatibility.
  • Intuitive graphical user interface.
  • Support for various operating systems.
  • Seamless integration with host operating system.
  • Snapshots and clones.
  • Networking capabilities.
  • Virtual device support.
  • Extension packs for additional functionality.


What's New

Version 4.3.22

  • VMM: refined measurement of TSC frequency on the host, improves timekeeping for guests
  • VMM: decreased CPU load resulting from guest MMIO writes to the virtual APIC
  • VMM: fixed interception of debug exceptions, observed while using the dbx debugger on Solaris guests 
  • GUI: 3D overlay window positioning code improved, fixed potential misplacement of 3D accelerated guest graphics content
  • GUI: fixed accident SSL authentication failures during update check on Windows hosts 
  • GUI: never send the "ACPI power" keyboard scancode to the guest, we have the ACPI power button for that
  • GUI: was unable to properly restore seamless mode VM from snapshot/saved-state under some circumstances
  • VBoxHeadless: don't crash if 3D is enabled in the VM settings 
  • ATA: fixed several passthrough issues 
  • Audio: fixed DirectSound failure when the the host has no audio input device 
  • SB16: fixed compatibility issue 
  • Storage: fixed broken CD/DVD passthrough when using the IDE controller 
  • NAT: new ping proxy for Windows hosts 
  • NAT: Properly report outbound connect(2) failures to guest with TCP RST or ICMP 
  • NAT Network: no need for frequent wakeups in VBoxNetDHCP and VBoxNetNAT 
  • Host-only adapter: prevent Windows from creating an "Unidentified network" 
  • Bridged Networking: don't leak host-to-guest traffic to the wireless network when bridging to a wireless interface 
  • Main: fixed a possible race when changing the medium leading to a deadlock under rare conditions
  • VBoxManage: fixed return code if starting a VM failed
  • Settings: on Windows host, do not use environment variable HOME at all, the settings location is derived from the user profile directory 
  • API: fixed 2 deadlock opportunities related to medium handling 
  • API: fixed bug in XPCOM which created too few worker threads, sporadically resulting in a deadlock 
  • SDK: fixed a garbage collection leak in the Python VirtualBox webservice API binding 
  • Linux hosts: fixes for activated SMAP 
  • X11 guests: prevent unwanted hiding of guest screens on multi-monitor guests 
  • X11 guests: added support for X.Org Server 1.17
  • X11 Additions: fixed a memory leak in VBoxService if libdbus is available but dbus-daemon isn't running 
  • Windows Additions: prevent VBox WDDM driver from loading if host reports weak OpenGL capabilities. 3D content now can be shown over Remote Desktop connection.
  • Windows Additions: some fixes for recent Windows 10 Previews
  • Linux Additions: fixed a compatibility issue with 64-bit Linux 2.4 kernels
  • Linux Additions: fixed a potential use-after-free when unloading the VBoxGuest module
  • Linux Additions: Linux 3.19 fixes 

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User Reviews

Security Levels

To avoid any potential harm to your device and ensure the security of your data and privacy, our team checks every time a new installation file is uploaded to our servers or linked to a remote server and periodically reviews the file to confirm or update its status. Based on this checking, we set the following security levels for any downloadable files.

Clean

It is highly likely that this software program is clean.

We scanned files and URLs associated with this software program in more than 60 of the world's leading antivirus services; no possible threats were found. And there is no third-party softwarebundled.

Warning

This program is advertising supported and may offer to install third-party programs that are not required. These may include a toolbar, changing your homepage, default search engine, or installing other party programs. These could be false positives, and our users are advised to be careful when installing and using this software.

Disabled

This software is no longer available for download. It is highly likely that this software program is malicious or has security issues or other reasons.

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