Could someone suggest how to use ArcGIS Engine Background Geoprocessing (64 bit) in ArcGIS Engine 10.4 ArcObjects console application?
I am using C#, .Net 4.5.2 framework, ArcObjects SDK 10.4 to develop this.
It's not actually as complicated as you'd think.
It's simply a matter of installing both the SDK environment (ArcEngine) and the 64bit Background Geoprocessing for ArcEngine. Once that's installed, any tool that you execute in the background will leverage 64bit by default. There' isn't special code you need to have it execute in the 64bit space; it's just used if it's installed.