Many ways to get your application path

// The following returns the application executable path with exe name
Console.WriteLine(System.Environment.CommandLine); 
//  or
Console.WriteLine(System.Windows.Forms.Application.ExecutablePath);
//  or
Console.WriteLine(System.Reflection.Assembly.GetExecutingAssembly().Location);
        
// The following returns just the application executable path
Console.WriteLine(System.Environment.CurrentDirectory); 
//  or
Console.WriteLine(System.IO.Directory.GetCurrentDirectory());
//  or
Console.WriteLine(System.Windows.Forms.Application.StartupPath);
//  or
Console.WriteLine(System.AppDomain.CurrentDomain.BaseDirectory);
//  or
Console.WriteLine(System.Reflection.Assembly.GetExecutingAssembly().CodeBase);