VirtualBox is a general-purpose full virtualizer for x86 hardware. Targeted at server, desktop and embedded use, it is now the only professional-quality virtualization solution that is also Open Source Software.
Some of the features of VirtualBox are:
- Modularity. VirtualBox has an extremely modular design with well-defined internal programming interfaces and a client/server design. This makes it easy to control it from several interfaces at once: for example, you can start a virtual machine in a typical virtual machine GUI and then control that machine from the command line, or possibly remotely. VirtualBox also comes with a full Software Development Kit: even though it is Open Source Software, you don't have to hack the source to write a new interface for VirtualBox.
- Virtual machine descriptions in XML. The configuration settings of virtual machines are stored entirely in XML and are independent of the local machines. Virtual machine definitions can therefore easily be ported to other computers.
The following items were fixed and/or added:
Shared Folders: fixed case insensitive filename access (5.1.16 regression; Windows guests only)
Shared Folders: fixed access to long pathes (5.1.16 regression; Windows guests only)
API: fixed snapshot handling of medium attachments and PCI device attachments
API: make 32-bit Windows guests in raw mode boot again if the ICH9 chipset is used (5.1.16 regression)
VBoxBugReport: fixed VM log collection issue
Linux hosts: fixed autostart service script
Windows Additions: fixed automatic logins for Windows Vista and newer (5.1.4 regression)