Convert VB to C# - My.Application.Info.DirectoryPath

Application.ExecutablePath

System.Windows.Forms.Clipboard

System.Media.*

Application.Exit

My.Application.Info.DirectoryPath
  AppDomain.CurrentDomain.BaseDirectory

My.Computer.Clipboard
  System.Windows.Clipboard //(WPF)
  System.Windows.Forms.Clipboard //(WinForms)

My.Computer.Audio.PlaySystemSound()
  System.Media.SystemSounds.*.Play()

My.Application.Shutdown()
  System.Windows.Forms.Application.Exit() //(WinForms)
  or
  System.Windows.Application.Current.Shutdown()  //(WPF)
  or
  System.Environment.Exit(ExitCode)  //(Both WinForms & WPF)

From decompiling Microsoft.VisualBasic.dll, the actual code that gets executed when calling My.Application.Info.DirectoryPath is:

Path.GetDirectoryName(
    new AssemblyInfo(
        Assembly.GetEntryAssembly() ?? Assembly.GetCallingAssembly()).Location);