How to check if an assembly was built using Debug or Release configuration (ref: http://stackoverflow.com/questions/2186613/how-to-check-if-an-assembly-was-built-using-debug-or-release-configuration)

Program.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Reflection;

namespace CheckIfDebugOrRelease
{
    class Program
    {
        static void Main(string[] args)
        {
            Assembly assembly = Assembly.LoadFile(@"C:\Dev\Prv\Samples\CheckIfDebugOrRelease\CheckIfDebugOrRelease\lib\CheckIfDebugOrRelease.exe");
            IEnumerable<Attribute> customAttributes = assembly.GetCustomAttributes();
            IEnumerable<Attribute> debuggableAttributes = from attribute in customAttributes
                                                          let debuggableAttribute = attribute as DebuggableAttribute
                                                          where debuggableAttribute != null && debuggableAttribute.IsJITTrackingEnabled
                                                          select attribute;

            if (debuggableAttributes.Any())
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine("'{0}' has been compiled in Debug mode!", assembly.FullName);
            }
            else
            {
                Console.ForegroundColor = ConsoleColor.Cyan;
                Console.WriteLine("'{0}' has not been compiled in Debug mode!", assembly.FullName);
            }


            Console.ReadLine();
        }
    }
}