Question

I have windows application which enables user log-in. After Login I want the Add-in get loaded. and when user Exits that paticular Word instance(Only one instance of word can exists when the login application runs) then add-in is also unloaded. I have tried to do it by

 addin.Connect = false;//Application.COMAddins. Connect 

It sets the LoadBehaviour( COM add-ins list) to 2
and when it loads i set it to 3

Its working but MSword displays so many error messages while exit and sometimes disables my add-in.
Is there any other way to load and unload add-in dynamically?

Answer 1

In add-in’s StartUp event i checked the the property of login form. if it is set then execute following line

 addin.Connect = true;

and added a quit event handler

 ((Microsoft.Office.Interop.Word.ApplicationEvents4_Event)app).Quit += new Microsoft.Office.Interop.Word.ApplicationEvents4_QuitEventHandler(App_Quit);

in its App_Quit method

void App_Quit()
    {
       addin.Connect = false;
    }

Now when i quit word; my add-in is unloaded. finally it started working 🙂