Esatto.Win32.Com 3.0.1

Esatto Win32 COM

Example out-of-process server

[ComVisible(true)]
public interface IShellApplication
{
    void Navigate(string destination);
}

[ComVisible(true)]
[ClassInterface(ClassInterfaceType.None)]
[ProgId(SessionApplication.ShellApplicationProgId)]
public sealed class ShellApplication : StandardOleMarshalObject, IShellApplication, IDisposable
{
    private readonly INavigationManager NavMgr;
    private readonly ClassObjectRegistration ThisReg;

    public ShellApplication(INavigationManager navMgr)
    {
        this.NavMgr = navMgr;
        this.ThisReg = new ClassObjectRegistration(typeof(ShellApplication).GUID,
            ComInterop.CreateClassFactoryFor(() => this), CLSCTX.LOCAL_SERVER, REGCLS.MULTIPLEUSE | REGCLS.SUSPENDED);
        ComInterop.CoResumeClassObjects();
    }

    public void Dispose()
    {
        this.ThisReg.Dispose();
    }

    public void Navigate(string destination) 
    {
        NavMgr.Navigate(destination);
    }

    #region Registration

    [Obsolete("Implemented only to support regasm, use .ctor(INavigationManager)")]
    public ShellApplication()
    {
        // required for regasm
        throw new InvalidOperationException();
    }

    [ComRegisterFunction]
    internal static void RegasmRegisterLocalServer(string path)
    {
        // path is HKEY_CLASSES_ROOT\\CLSID\\{clsid}", we only want CLSID...
        path = path.Substring("HKEY_CLASSES_ROOT\\".Length);
        using (var keyCLSID = Registry.ClassesRoot.OpenSubKey(path, writable: true)!)
        {
            // Remove the auto-generated InprocServer32 key after registration
            // (REGASM puts it there but we are going out-of-proc).
            keyCLSID.DeleteSubKeyTree("InprocServer32");
            using (var ls32 = keyCLSID.CreateSubKey("LocalServer32"))
            {
                ls32.SetValue(null, Assembly.GetExecutingAssembly().Location);
            }
        }
    }

    [ComUnregisterFunction]
    internal static void RegasmUnregisterLocalServer(string path)
    {
        // path is HKEY_CLASSES_ROOT\\CLSID\\{clsid}", we only want CLSID...
        path = path.Substring("HKEY_CLASSES_ROOT\\".Length);
        Registry.ClassesRoot.DeleteSubKeyTree(path, throwOnMissingSubKey: false);
    }

    #endregion Registration
}

Register with regasm or DSCOM

Example out-of-process client

SessionApplication.Navigate("Example");

public static class SessionApplication
{
    public const string ShellApplicationProgId = "Example.Shell.Application.1";

    public static IShellApplication GetOrOpenShell()
    {
        var app = (IShellApplication)ComInterop.CreateLocalServer(ShellApplicationProgId);
        try
        {
            ComInterop.CoAllowSetForegroundWindow(app);
        }
        catch
        {
            // Nop, we may not have foreground
        }
        return app;
    }
}

Run with impersonation

ComInterop.RunImpersonated(() =>
{
    var ident = WindowsIdentity.GetCurrent(true);
    Console.WriteLine(ident.User);
});