How to program PCIE-6509 with C#

Hi there,

I have an NI PCIe-6509 digital IO card. I want to program to set the 96 chanels high/low by using C# programming language and I have no idea where to start. Can someone point me to the right direction? Is there any sample C# code related to NI PCIe-6509?

Ps. i am using windows 7, 64bit operating system and visual studio 2010.

Regards