When you activate the XP-Mode a virtual environment is created which runs the XP OS as a different machines sharing all resources with Windows 7. This is called the XP-Mode machine. The devices attached to the Windows 7 machine are managed by the integration services under the XP Mode to share them between the Windows 7 machine and XP-Mode machine.
The devices we are considering here are all those attached by USB ports. On my machine these are Microsoft VX-7000 Webcam, Z-10 Logitech Speakers, External Transcend Hard Disks, HP 1010 Laserjet Printer and HP Scanjet 3010. I will illustrate how external hard disk and printers are connected and shared.
Attaching External Hard disk StoreJet Transcend. The drivers required for this device are installed automatically in Windows 7 and XP-Mode when first recognised.
|When you connect an external hard disk like StoreJet Transcend to an USB Port it shows up as a “Shared” device on the list of USB attached devices in the XP-Mode machine.
My Computer list in Windows 7 will show this as a hard disk. In the XP-Mode My Computer list will not show this.
|When you click on the StoreJet Transcend name in the list it is attached to the XP-Mode machine and the label changes to “Release”.
My Computer list in Windows 7 will not show this as a hard disk now . The XP-Mode My Computer list will now show this as an attached hard disk .
When you finish using this device you click on its name in the list to return the device to Windows 7 machine.
Attaching HP 1010 Printer. There are no drivers for this device in Windows 7. I have installed this device as HP 1015 Printer which has drivers in Windows 7. The HP 1010 Printer Software Driver CD for XP OS is supplied with the printer.
|HP 1010 Printer is installed as a HP 1015 Printer in Windows 7 and it shows as a device in the Device Stage list.|
|The first time the XP-Mode recognises the attached printer it requests for the HP 1010 Software disk and installs the required drivers. The Printer now appears as HP 1010 Printer in XP-Mode device list. Its status is shown as “Shared”.
At this time you can print on this printer from Windows 7 but not from X-Mode.
If you want to print on this printer from XP-Mode, you must click on the “Shared” label. The label now changes to “Release” and the printer is attached to the XP-Mode machine.
|At this time you can print on this printer from XP-Mode but not from Windows 7.
When the printer is attached to the XP-Mode machine it shows up in the list with a label “Release”. You can click on the device name to return the printer to the Windows 7 machine and the label changes to “Shared”.
The HP Scanjet 3010 is also treated the same way.
In summary: Each attached device on the USB port can be used in one of the machines at a time, either Windows 7 or XP-Mode. The required software is automatically installed on first use. The devices are switched between machines by Attach/Release/Shared mechanism managed by the Integration services in the XP-MODE window.
The installed hard disk partitions in Windows 7 machine like C: D: E: etc are automatically shared between two machines. The XP-Mode has it’s own C: drive which is simulated in a VHD (Virtual Disk Drive) File on the C: drive of Windows 7.