4 Guest Additions
To disable this update check for the Guest Additions of a given virtual machine, set the value of its /VirtualBox/GuestAdd/CheckHostVersion guest property to 0; see chapter 4.11, Guest properties, page 73 for details.
4.3 Windows Guest Additions
The VirtualBox Windows Guest Additions are designed to be installed in a virtual machine running a Windows operating system. The following versions of Windows guests are supported:
•Microsoft Windows NT 4.0 (any service pack)
•Microsoft Windows 2000 (any service pack)
•Microsoft Windows XP (any service pack)
•Microsoft Windows Server 2003 (any service pack)
•Microsoft Windows Server 2008
•Microsoft Windows Vista (all editions)
•Microsoft Windows 7 (all editions)
4.3.1 Installing the Windows Guest Additions
After mounting the Guest Additions ISO file, the Windows guest should automatically start the Guest Additions installer, which installs the Guest Additions into your Win- dows guest.
Note: For Direct 3D acceleration to work in a Windows Guest, you must install the Guest Additions in “Safe Mode”; see chapter 13, Known limitations, page 237 for details.
4.3.1.1 Mounting the Additions ISO file
In the “Devices” menu in the virtual machine’s menu bar, VirtualBox has a handy menu item named “Install guest additions”, which will automatically bring up the Additions in your VM window.
If you prefer to mount the additions manually, you can perform the following steps:
1.Start the virtual machine in which you have installed Windows.
2.Select “Mount
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