Installer: greatly improved Windows installer, fixed uninstall and perform driver and COM registration through MSI

VBoxManage: added commands to create and delete Win32 Host Interface Networking adapters

VDI: updated virtual disk image format (for newly created images; old images continue to work) with enhanced write performance and support for the upcoming snapshot feature

Network: performance improvements

Graphics: added hardware acceleration to virtual graphics adapter and corresponding Guest Additions driver

Graphics/Additions/GUI: added dynamic resizing support

Graphics: added workaround for buggy VESA support in Windows Vista/Longhorn

VRDP: performance and stability improvements; added support for graphics acceleration architecture

USB: restructured USB subsystem; added support for filters to autocapture devices that meet defined criteria

GUI: added mouse wheel support

VMM: added support for PAE host mode