How to create "VSS aware" recovery snapshot?

I need to implement Hyper-V incremental backup of VHD/VHDX in my application (2012 and later OSs only). I am using the following document (Under High Availability, Page no: 103-104) as a reference.

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CDoQFjAB&url=http%3A%2F%2Fdownload.microsoft.com%2Fdownload%2FA%2F2%2F7%2FA27F60C3-5113-494A-9215-D02A8ABCFD6B%2FWindows_Server_2012_R2_Server_Virtualization_White_Paper.pdf&ei=gkMnU7SWAcbuoATErYCABA&usg=AFQjCNHDPhCXG8DTMPU5X_ZwVg3IpSL0HQ&bvm=bv.62788935,bs.1,d.cGU

Based on this, the incremental backup is done through recovery snapshots. Also it says the backups are VSS aware (page no: 103). I understand everything except "VSS aware recovery snapshot". I know how to create recovery snapshot in general. I followed the following sample code to do that. It uses CreateSnapshot API with SnapshotType 32768. But not sure this recovery snapshot is VSS aware.

http://code.msdn.microsoft.com/windowsdesktop/Hyper-V-recovery-snapshot-ea72320c

My questions are,
How to create "VSS aware" recovery snapshot of Hyper-V VM?
Is there any VSS procedure I need to follow before/after creating recovery snapshot?
Can I use recovery snapshot method in CSV environment (for incremental backup of Hyper-V VM's VHD)?

Thanks in advance.