Hi @nkrish 
Databricks notebooks cannot run a Windows based C sharp executable. Databricks compute runs on Linux and does not support executing native Windows exe files. Because of this, a C sharp exe cannot be called directly from a Databricks notebook. The supported pattern is to run the exe outside Databricks and integrate through a service or API, or refactor the logic so it can be executed in a cross platform way or reimplemented using Spark or Python inside Databricks.