I have a VB.NET (VS 2003, .NET 1.1) application which references Excel 2000.
This generates Interop.Excel.dll.
The generated .dll is invalid, so I use ildasm to generate a .il file. I
change to .il file (changing some [in] to [in][out] so events work

Hi Gurus,
I am having problem opening an excel file from vb.net. My code looks like
this:
Dim EXL as Excel.Application

I have the following structure in a DLL:
namespace myDLL{
public __gc class Base
{

Is there a tool/way to generate the DllImport (and data structure) statement
based on a dll we provide, in order to be able to call functions from a C#
app?
(advapi32.dll)

Sorry for the cross post but I need an answer to this
ASAP and wasn't sure which newsgroup is the most relevant
since this problem covers a number of areas.
Problem:

Hey all,
INVALID_HANDLE_VALUE is #DEFINE-d like so (in winbase.h):
((HANDLE)(LONG_PTR)-1)
which I'm reading as -1 cast to LONG_PTR cast to HANDLE.

I'm getting an IStream back from function xmlHttp.responsestream.  I would
like to convert this to a System.IO.Stream in order to work with it in my
application.  Has anyone encountered this and written a conversion?
TIA,

Is it possible to integrate Excel 2003 (Workbook/sheet) in a WinForm? What I
want to achieve is dat Excel runs in a WinForm (as a control?) and not as a
popup Excel Workbook/sheet.
Thanks.

I've posted this on the WebService thread but had no luck
so perhaps any interop experts can shed some light on this?
All i'm trying to do is make a call into an unmanaged COM+
component via it's application proxy from a .NET ASP Web

I'm writing a small C# WinForms application to COM
Interop with Windows Messenger (v4.7.2009). Basically the
purpose of the app is to catch the messages that I
receive in Windows Messenger while I'm away from the PC

 I am trying to access an object from the RSView32 object model. In doing
so I get the message :
COM object with CLSID {0C599E91-BC23-11D0-95FC-00A024E91813} is either not
valid or not registered.

I was wondering if anyone has a working implementation of
APP's written in C# or VB.NET that they'd mind sharing.
I've found various newsgroup posts that keep giving a
snippet of information but I can never find the whole

I am migrating a VB6 COM web application to VB.Net.
I have several (lets say 2) vb projects which currently compile to 2 dlls
Each VB6 project references the msxml4.dll
After passing each project through the MS .net migration tool I end up with

Reposted from ...languages.csharp because this group seems more appropriate:
Hi,
My C# code is calling VB6 code, which expects all (fixed-length) strings to
be padded with spaces.  The strings are contained with a struct, something

I am trying to use a (.NET ready?) dll assembly written by
IBM for the Websphere product. It is called amqmdnet.dll.
When I try to create a new object I receive an error
message which says "A first chance exception of