I am writing a vb.net app to which I would like to allow people to write
add-ins by exposing various parts of the app. What sort of structure I am
looking for to accomplish the exposure to third parties? I am new to .net
and this is going to be my first serious app.

Hopefully someone can help me out with this; if what I'm asking is even
possible.
My basic question is how can I convert a void * into an Object and then
later convert it back again.

hi, all
I developed an .net control, that inherited from Control class using C#
language.
Now, I want to use it in native VC++ or VB6 or Delphi ect, What should i do?

I need to marshall a struct containing a union. The union part is not
being correctly passed. Any ideas on what I am missing or doing wrong?
Thanks for your help!
Johann

we need to deploy Microsoft.mshtml and tried as follows:
* install the assembly into the gac (installshield)
* registering the assembly (installshield - COM interop)
This works for users who executed the install-program for our software. All

I'm attempting to create a vb.net class (no form) which uses
functionality provided by an activex control.
1) I've ran aximp and added the 2 references,
2) Added the declaration:

I have a solution with many projects, of which several have COM
references to a third-party DLL.  At initialization, our application
performs reflection searches through the assemblies in its start
directory to discover its functionality.  In other words, most of the

When attempting to connect to a COMAddIn, I get the following
exception:
{System.Runtime.InteropServices.COMException}
   [System.Runtime.InteropServices.COMException]:

I have a exe that is registered and runs in my account. How can i run this
exe in windows services so that everyuser to the server can have access to
this exe. I need to also have this exe start when server starts.

I am currently writing a C# app replacing an old app written in VB6.  Part of
the app save it's structure contents to a binary file.  The old VB6 app dumps
the structure into the file via:
    Put #Fnumb, , MyVB6Structure

We have a class that is a basic wrapper around a native 3rd party C
DLL.  
We created an NUnit test against the wrapper and it passes fine the
first time.  However, when we run the tests again, it always fails

Sorry about the multipost, but I realized too late after I posted to
m.p.d.l.c# that my question might be more appropriate in this group.
I have two C# projects: a production project and NUnit tests for it.
I've recently added a test that causes a call into a registered COM

This is what I want to do:
I want to develop a .NET Windows Control, expose the control as an ActiveX
and host the control from a VB6 form.
The control has to expose a MyEvent event.

I have this working in vs.net 2002.  I'm now moving to vs.net 2003.
vb6 exe calling vb6 ocx which references vb.net dlls.  vb.net dlls are delay
signed so I can obfuscate before strong naming.  vb.net dlls reference a few
activex controls and dlls that I've imported and strong ...

I Am trying to migrate a vb6 project to vb.net but in the upgrade wizard the
conversion crash with a critical error (vbu.exe  unspecified error ....) when
the wizard is loading type library stdole
I have vs2002 sp1 Framevork1.1 sp1