There are many examples in Visual Basic and C# in the sample applications download available from here.
The following is an example of dynamic control creation on a Windows form in Visual Studio using C#. Simply reference the control in your Visual Studio project and add the following code in the Load event of the form.
{
Zoople.HTMLEditControl oEdit = new Zoople.HTMLEditControl();
oEdit.Dock = DockStyle.Fill;
this.Controls.Add(oEdit);
oEdit.CSSText = "BODY {border: 0; font-family: Arial}";
}