migrate to cyusb3 from ezusb

Hi,

Our company has a custom hardware that uses the CY7C64713-128AXC   how can I update the ezusb to cyusb3?  I am confused on what sdk i need i see EZ-USB FX3 Software Development Kit. I need some direction on how to get to the current cypress driver. 

After that is done would this allow me to use C# to development applications for my hardware? I see there is a .lib but i believe i have to migrate first from ezusb.sys to cyusb3.sys   

 I use visual studio pro 2015.   

thanks!