We have a C++/COM object whose interface expects one of the input parameters
as VARIANT.
This parameter can be passed as a variant of VT_BSTR, VT_SAFEARRAY, or
VT_DISPATCH (to a ADO stream object, for example). Inside the COM class, we

It's been two weeks now, I'm a 10 year C++ COM guy and I cannot get a
.NET class library to work correctly under COM. I'm using C#.  I have
a trival little C# project that demonstrates this.  You either choose
to make your com objects to work with VBScript of JScript, but not

I am using an ActiveX compoment through a proxy stub DLL created with the
type library importer.
This all works fine for a while. I cache an instance of it in my object and
use the same method many times.

I need to implement IObjectSafety on a .NET component I am exposing to
COM.  I need to be able to access this component through vbscript in
IE.  I understand how to implement this in VB6, but I am not clear how
this works with .NET.

In the world of COM, it's really easy for .NET code to interop with
COM components, and vice versa via RCW's and CCW's.
However, I am confused how to mix unmanaged/managed code WITHOUT COM.
I do know how to do one direction (I know that to use a non-COM

I would like my vb.net app to work with word 2000 and above. What is the
method to get the appropriate reference(s) in my vb app?
Thanks
Regards

In my application I have written code to connect to a private network using
RAS (RasDial, RasHangUp, etc) APIs.
After I'm connected and authenticated in the network, I'm able to send files
to a shared folder and read files from that same folder using code similar

I am having a problem trying to interop from C# to VB.  I have a C#
dll that I am calling from within VB.  In testing on my machine, I can
get the process to work just fine (I'm using late-binding to access
the C# functionality).  However, once I move the DLL's out to our

Hi
I am writing an VB.net Mail Merge application.  I have a
series of templates which reside on my machine.  I am
trying to use eith a dataset, datatable or dataview as my

I'm trying to pass a structer from C# to a C dll in .Net Compact Framework
This partially works.  If in the GetStatus I only set -- status->fileLength
= 10; -- and not the second variable then filelength = 10 and fileposition =
0, but if i set the second one only or both of them ...

I want to serialize / deserialize an array of structure.
Preferrably I can choose which elements are serialized / deserialized
because some of them are invalid.
I am trying to figure out how deserialization can be done. If

I'm looking for someone to help me make sense of the results I'm observing when using the ThreadPool class in a COM-Interop scenario. Here's the set up:
 1.. A classic ASP page instantiates and calls MethodA on COM+ Class (C1).
 2.. MethodA of COM+ class (C1) instantiates and ...

My customer wants to make an Outlook com add-in with C#.
As I know, they can do with an Outlook Primary Interop
Assembly(PIA).  But the Outlook PIA is only available for
Outlook 2002 and Office XP.

I've been looking for information on this for a couple of days, but could
not find anything on that.
I need to write an asp application which creates word documents. This is
not that hard (from what I've seen), but the client wants the user to be

byte* p in my C structure is translated to IntPtr in C#.
I want to copy contents given by p to byte[] created in C#. VS.Net
doesn't allow this conversion from IntPtr to byte[].
When I tried to use unsafe function, I got: