WPF

HRESULT Sheet::UpdateLink(CString strSourcePath, CString strLinkPath, 
	                 CString strDesc, CString strArguments) 
{ 
	HRESULT hres; 
	IShellLink* psl; 

	// Get a pointer to the IShellLink interface. 
	hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, 
		IID_IShellLink, (LPVOID*)&psl); 
	if (SUCCEEDED(hres)) 
	{
		// Query IShellLink for the IPersistFile interface for loading 
		// from and saving the shortcut in persistent storage. 
		IPersistFile* ppf; 
		hres = psl->QueryInterface(IID_IPersistFile, (LPVOID*)&ppf); 

		if (SUCCEEDED(hres)) 
		{ 
			LPOLESTR oleLinkPath = (LPOLESTR)(LPCTSTR)strLinkPath;

			// First, try to load an existing link to get current settings.
			hres = ppf->Load(oleLinkPath, STGM_READWRITE);
			if (FAILED(hres))
			{
				// Just assume link doesn't exist
			}

			// Now make the new settings.
			hres = psl->SetPath(strSourcePath); 
			hres = psl->SetDescription(strDesc);

			// If the client specified arguments, set them also.
			if (strArguments.GetLength())
			{
				hres = psl->SetArguments(strArguments);
			}

			// Save the link by calling IPersistFile::Save.
			hres = ppf->Save(oleLinkPath, TRUE);
			ppf->Release();
		}
		psl->Release(); 
	}
	return hres; 
}

class XManager
{
  private X activeX;

  public X ActiveX
  {
    get { return activeX; }
  }
}

class X : INotifyPropertyChanged
{
  public string Text { get; set; }

  public void PutSomeTextProgramatically(string someText)
  {
    Text += someText;
    if (PropertyChanged != null)
      PropertyChanged(this, new PropertyChangedEventArgs("Text"));
  }
}

<Windows.Resources>
  <local:XManager x:Key="xManager"/>
</Windows.Resources>

<TextBox Name="someBox">
  <TextBox.Text>
    <Binding Mode="TwoWay" Source="{StaticResource xManager}" Path="ActiveX.Text" />
  </TextBox.Text>
</TextBox>

//This one is invoked when activeSession signals PropChange
void XSession_PropertyChanged(object sender, PropertyChangedEventArgs e)
{
  if (e.PropertyName == "Text")
  {
    if (PropertyChanged != null)
      PropertyChanged(this, new PropertyChangedEventArgs("ActiveSession.Text"));
  }
}