Yes true!
Microsoft released its Interop Forms Toolkit 1.0 as a free add-in that simplifies the process of displaying .Net WinForms in a VB6 application.
More details: Microsoft Tool Brings VB6 Developers to .Net
Several times there is a requirement to hide/disable the close button and to close the Form with a button on the Form to exit the application.
To hide the Close Button on the form we can set ControlBox propertyof the Form to False (by default its set to True)