In reply to Chris Hemedinger.

Thanks Chris ! But It will always return 4.3 since I am using same .dll for EG 4.3 and EG 7.1.

What I want is, it should return 7.1 when I am integrating my .NET app with EG 7.1 and should return 4.3 when I am integrating my .NET app with EG 4.3.