public EmbeddedShellView() { InitializeComponent(); this.commandTextBox.PreviewKeyDown += OnCommandTextBoxPreviewKeyDown; // ignore execution-policy var iis = InitialSessionState.CreateDefault(); iis.AuthorizationManager = new AuthorizationManager(Guid.NewGuid().ToString()); iis.Providers.Add(new SessionStateProviderEntry(ShellConstants.DriveName, typeof(VisualTreeProvider), string.Empty)); this.host = new SnoopPSHost(x => this.outputTextBox.AppendText(x)); this.runspace = RunspaceFactory.CreateRunspace(this.host, iis); this.runspace.ThreadOptions = PSThreadOptions.UseCurrentThread; this.runspace.ApartmentState = ApartmentState.STA; this.runspace.Open(); // default required if you intend to inject scriptblocks into the host application Runspace.DefaultRunspace = this.runspace; }