C# - Environment.FailFast() Method with Example

In this tutorial, we will learn about the C# Environment.FailFast() method with its definition, usage, syntax, and example. By Nidhi Last updated : March 30, 2023

Environment.FailFast() Method

The Environment.FailFast() method is used to terminate the process immediately after writing the Windows application event log.


void Environment.FailFast(string eventLog);


  • eventLog: a message that will be logged in the windows application event log.

Return Value

This method does not return any value.

C# Example of Environment.FailFast() Method

The source code to demonstrate the use of FailFast() method of Environment class is given below. The given program is compiled and executed successfully.

using System;

class Sample
    //Entry point of Program
    static public void Main()
        Console.WriteLine("Program before termination of process");
        Environment.FailFast("Terminate program by Me");
        Console.WriteLine("Program after termination of process");


Program before termination of process
Press any key to continue . . .

C# Environment Class Programs »

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