Sample Download : http://code.msdn.microsoft.com/VirtualVolume-83334efd#content
This is the Virtvol sample driver. This version of the driver has been modified to support the driver frameworks. This driver basically creates a nonpaged pool and exposes that as a storage media. User can find the device in the disk manager and format the media to use as FAT or NTFS volume. In addition, Virtvol integrates with Mount Manager, so that it is not necessary for you to assign a drive letter, the system will do this automatically.
You can find more code samples that demonstrate the most typical programming scenarios by using Microsoft All-In-One Code Framework Sample Browser or Sample Browser Visual Studio extension. They give you the flexibility to search samples, download samples on demand, manage the downloaded samples in a centralized place, and automatically be notified about sample updates. If it is the first time that you hear about Microsoft All-In-One Code Framework, please watch the introduction video on Microsoft Showcase, or read the introduction on our homepage http://1code.codeplex.com/.