I am migrating UFT one project to UFT Developer. In UFT one, we used to have a ApplicationToolKit, which has set of dlls. This Application toolkit was added in the C:\Program Files (x86)\OpenText\Microfucous Unified Functional Testing\dat\extensibility\WPF folder . When Uft one was launched, i am seeing this application Toolkit under launch settings coming as Checkbox under WPF. This ToolKit provides extra methods and properties for the Objects of the applications. These objects are present in Object Identificaton Center.
How to use the same toolkit in the UFT Developer so that this toolkit can provide extra properties and methods to my test object like windows, text added in application model in C# visual studio. I tried referencing the dlls, used the methods which is giving me Null reference Exception Error.