This is what I started out assuming. I can successfully add my .NET
component project reference to my client project and build.

I can successfully create an instance of my .NET component via
automation calls to the ActiveX container. Then, I cast the created
object to my class. Upon accessing any property or method in this
object, I get a Remoting exception:

"This remoting proxy has no channel sink which means either the server
has no reg
istered server channels that are listening, or this application has no
suitable
client channel to talk to the server."

I can access properties and methods in the object returned from the
ActiveX container, just not on my object class. I can also access
properties and methods of non-.NET ActiveX controls provided by the
vendor after I've cast them to the right type.

Here's a snippet of VB code as an example of what I'm doing:

       ' Start IADS
       Dim iads As IadsAutomationLib.Application
       iads = CreateObject("Iads.Application")

       ' Load configuration
       Dim iadsConfigFile As String
       iadsConfigFile = "pfConfig"
       iads.Configuration.LoadConfiguration(iadsConfigFile)

       ' Create an analysis window
       Dim aw As IadsAutomationLib.AnalysisWindow
       aw = iads.ActiveDesktop.AnalysisWindows.Add("Free Space View")
       aw.WindowState =
IadsAutomationLib.IadsWindowStateType.iadsMaximized
       aw.Visible = True

       ' Add an IADS Primitives item and test setting a property
       Dim display As IadsAutomationLib.DataDisplay
       display = aw.DataDisplays.Add("IadsPrimitives.IadsCircle", 0,
0, 100, 100, 0, "circle")
       Dim circle As IADSPRIMITIVESLib.IadsCircle
       circle = display.ControlUnknown
       circle.TranslateX = 100

       ' Add my Cart control and set a property
       display = aw.DataDisplays.Add("ITIP.IADS.MonitorCart", 0, 0,
100, 100, 0, "cart")
       Dim mc As ITIP.IADS.MonitorCart
       mc = display.ControlUnknown

       ' This will crash with Remoting exception
       Try
           Console.WriteLine(mc.PosXfeet)
       Catch ex As Exception
           Console.WriteLine(ex.Message)
       End Try

The only thing I'm doing to make my .NET component assembly work with
COM is to set "Register for COM interop" to true in VS.NET 2003.
Perhaps I'm missing something.

Thanks.