I'm trying to use a C# program to read the Outlook Sent Items folder.
The constructor:
Outlook.Application  oApp = new Outlook.Application ();
throws exception:

I have been banging my head againt my desk for a couple days now and nothing
I try seems to work.  I know I am missing something small and it's killing
me.
This is the error I am getting with this code:

I am trying to instantiate a .Net class in the VB editor of MS Excel
(PE 2003) Macros.
I have added the reference to the tlb of the .Net (TestProject)
project.

I am trying to connect to an automation server. I've imported the type
library and everything matches with the tlb file when I view it using the
old OleViewer.
I n the old vb6 days I just used Getobject("BACtalk.ActiveX.Interface") and

I am building a VB.NET dll browser extension to respond to the click event of
a custom button added to IE's toolbar.
I am implementing the IObjectWithSite interface to handle acquiring a
reference to the browser. And I am implementing the IOLECommandTarget

Hi, I try to encapsulate  an ActiveX Control  to output the specified fileName.
Such as :
I have an ActiveX control :U8RefEdit.ocx and wanto get two file:
COM Interface file :Interop.U8Ref.dll  and Activex

I have an application that plays mp3 and wav files using ;-
QuartzTypeLib.FilgraphManager graphManager = new
QuartzTypeLib.FilgraphManager();
QuartzTypeLib.IMediaControl mc = (QuartzTypeLib.IMediaControl)graphManager;

I have some C# code I want to use from C++.  One of the C# method's
parameters expects a COM interface (which was defined in a separate COM
component, which is used by both of my assemblies), but I can't seem to pass
a COM interface over to C# because I get error C2664:

I have COM+ Application (running as a server under user S), where I
inserted
C# class MyServerClass. Now I need call these class - but throw COM+
Application.

AfxOleGetMessageFilter()->EnableNotRespondingDialog(FALSE);
AfxOleGetMessageFilter()->EnableBusyDialog(FALSE);
Many thanks in advance.

I have a dll written by VB6 and I've use "tlbimp" command to produce an
interop assembly.
I now try to use reflexion to create an object from VB6 DLL to .NET
environment and cast it back (eg. ClassA)

I wish to provide a C++ DLL interface for non-framework clients to access a
C# DLL - is this possible?  I have had some limited success by using a pimpl
idiom to cross from unmanaged to managed - but anything more than a simple
message output yields an exception.  I cannot debug ...

Im trying to pInvoke a function od the packet.dll library of winpcap (i know
it is already done but im doing it as an exercise).
So I have the function GetAdapterNames which is like this:
BOOL PacketGetAdapterNames(PTSTR pStr,PULONG BufferSize);

I'm writing a .NET assembly wrapping a native DLL which is
available in both 32-bit and 64-bit versions. The main difference
in the API is that some integer parameters map to System.Int32 in
the 32-bit version and to System.Int64 in the 64-bit version.

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Problem:  The problem we are having is in VB6 we defined many properties of
type Variant for the sole purpose of being able to store Null.  These
properties are typically used to ...