We have .NET dlls containing interfaces that we want to use from COM. Each
interface has a Guid Attribute specifying its Interface ID. We use regasm in
order to generate the tlb and then use the DLL as COM #import statement in a
C++ project .

When i create an ATL object and i try to use new statement the compiler say
me
Impossible to create an abstract object
Why?

I'm having problems with strongly named assemblies usage. There is  a .NET
solution with number of projects signed by public/private key pair (snk).
The solution uses another package of .NET assemblies signed by another snk
and deployed as msi. Now the problem. These package ...

  I am building a VB.NET form interface for a legacy Visual FoxPro
7.0 (VFP) DLL (which contains our business logic).  Basically, the
form instantiates multiple instances of the VFP object (via COM
interop) in separate threads.  I would like each VFP object to be

I'm trying to develop some MS Word automation from within a VB.NET WinForm
application. My user base has either Office XP or Office 2003 installed. I
currently have Office 2003 installed. Two questions:
1. Is it possible for me to develop against the COM V10 without installing

I have problem with my project with respect to "out of process" controls.
One of these controls is the WebBrowser control and the other an in-house
OLE control that has had the ActiveX interfaces bolted onto it to try and
get it to work with VB.NET.

I'm having trouble calling the function CryptRetrieveObjectByUrl (found in
Wincrypt.h). I posted to this forum earlier and I got an answer which I now
have tried without success.
The declaration looks like this:

Ive done the searches etc, and although Ive read many interesting articles
and posts, Im not sure they were relevant to my case:
I am using a simple ActiveX control (the Bloomberg Data Control to be
specific). I use application.Run to execute a method where I create an

I'm trying to pass a variable length string from unmanaged code to
managed code. It's actually from a DLL written for the Pocket PC 2003
in embedded Visual C++ 4 to an app written for the Pocket PC 2003
using the .Net Compact Framework in Visual Studio .Net.

I have a fortran exe (asos.exe), which outputs a text file in the same
directory as that of the exe. When this exe is invoked individually,
it outputs a text file. I tried to invoke it from .net form, using
shell command / system.dagnostics.process.start, but it writes to the

I have an application that is split into two parts--the user-interface
portion, written in C#, and a C++ DLL that contains both managed and
unmanaged code, where the unmanaged code is core processing that needs
to be as fast as possible.

I added a reference to the COM object SHDOCVW.dll.  It of course
created the Interop.shdocvw.dll file.  As I understand it this is for
the Runtime Callable Wrapper, so .NET can call on the COM object with
interoperability.

I have a VB.NET DLL, which contains a class I instantiate from a VB 6.0
application.
The instance is named NetTest, and functions very nicely.
When I'm through with it, I execute this line of code in VB 6.0:

Hi folks;
I'm working on an ASP.NET 1.1 app, and one of my classes is a managed
class that has a private member typed through COM Interop.  During the
initial page load Interop appears to be functioning correctly, however

i have created a DLL in vb.net which exposes its functionality to COM
clients.
the vb.net DLL has an app.config file because it has URLBehavior = Dynamic
for a number of web references it uses.