An interface that provides access to the CTPFactoryAvailable(ICTPFactory) method that is used to create an instance of a custom task pane.
Assembly: office (in office.dll)
You can create custom task panes in any language that supports COM and allows you to create dynamic-linked library (DLL) files. For example, Microsoft Visual Basic® 6.0, Microsoft Visual Basic .NET, Microsoft Visual C++®, Microsoft Visual C++ .NET, and Microsoft Visual C#®. However, Microsoft Visual Basic for Applications (VBA) does not support creating custom task panes.