I haven't tried this but I assume that you already tried the equivalent of
your in-page jscript and that didn't work. You can get to an add-in in the
running Outlook session from IE hosted in a FHP, but a standalone browser
has different security barriers. Perhaps your UserControl, even though it's
hosted in the FHP, is hitting those barriers. Do you need to reach the
add-in instance that Outlook loaded on startup, or just access Outlook data?


"David Ing" wrote in message
...
Hello,

I have a .NET winforms UserControl hosted inside a HTML page which is
referenced as a Outlook Folder Home Page. (Kind of like the recent MSFT
CRM
Integration example)

The .NET UserControl is initialized by using the following bit of jscript
in
the HTML:

var oApp = window.external.OutlookApplication;
SomeControl.Initialize(oApp);

So what I need some info around is this: How do I, from my .NET
UserControl,
gain access back into my .NET Outlook Add-in instance?

Paraphrased, I need to be able to call .NET functions from my UserControl
(the one hosted in the HTML page) back into the Outlook-Addin.

In jscript, in the same HTML page, I can reference the Add-In using the
COMAddIns enumeration, i.e (roughly):

var addin = app.COMAddIns.Item("MyAddIn.Connect");
var h = addin.Object;
h.AdotNetFunctionInMyAddIn("hello")

But how would I do this from within my .NET UserControl in C#?

Any help, clues, ideas appreciated. Thanks!
David