I got two library files (*.lib) and some header files which is written
by ANSI C from a third party. Inside the header files, there are many
struct, variables and methods declare inside. I am now want to use them in
C#. I have been looking for a solution for a long time. I think ...

I have a C struct and a DLL with a single function.  I've used the
MarshalAsAttribute, ref, DLllImport, StructLayout, UnmanagedType, etc...
declarations and I'm not having any luck.
I'm not really clear on when you can use the special declarations for

This is a little different than the other DllImport problems I've seen.
I'm calling a DLL from C# and it works great when I run inside Visual
Studio .NET.
But when I try to run my application from the same .EXE file that the

     I have a library(.dll). It's develop by VC++ 6.0. I would like to know
how C# can used my library? When I add reference at C# project it will show
my dll is not a valid assembly or COM component. How I fix this problem. I
don't want rewrite my dll because it's very big project ...

Abstract:
A watched folder is monitored for XML files, once the event Created is
raised, an Indesign.Application should be created
And should process the XML, this works fine using a windows form

[partly a cross-post with win32.gdi, but noone answers questions there]
I'm working on a C# project where we need to get glyph vertices from
fonts. There are several examples on how to do this in C++, but interop
not being my strongest side, I have some questions:

This seemed to be a popular topic a while back and I haven't seen any recent
posts on it, so I'm going to ask:
It is currently unsupported to create a UserControl in .NET and do the
interop wrappers to make it function _properly_ when used as an ActiveX

I'm creating an VB.NET class the implements 2 COM interfaces, call them IFoo
and IBar.  If I create an object in my local process, I can call IFoo->QI and
get back the IBar interface, but if the object is hosted in a different
process, the QI fails.  Any ideas how I can get this ...

I'm working on a project that entails calling into a legacy C DLL.
The original unmanaged test code (ancient C++) works OK, but
after generating managed C++ shells for calling the DLL via C#,
performance has taken a hit.  I can't explain it--Smaller scale

I have a struct in C with a function ptr in a dll called Image.dll:
The functionptr is initialized and called in the C-code
The application completes the above operation and then terminates with
an exception of System.OutOfMemoryException

I'm trying to run an application under another user within a winform
app writen in C#.  I have tried a number of different things, but it
seems that the CreateProcessWithLogonW function should work to do what
I need to do.  This appears to work just fine in Windows 2000 and XP

Is it possible to access the statistics of a remote DTC via .Net (C#) at
all?
Cheers
Ollie Riches

I'm sure this question have been asked before, but I cannot seem to find it
in here.
I've have a classlibrary written in .net that's exposed to com via interop
(registered in the GAC and so on).

I have a component im using in my application.  When I call a method
myComponent.slowMethod() my entire application hangs until slowMethod()
completes.  I have tried using the .net threading model to trigger the
slowMethod inside a thread wrapper class but I still have the same ...

Hi, I was wondering if anyone could explain why my c# code is not working as expected.
See the inline comment for my particular problem, which occurs immediately after the call to FormatMessage:
/// <summary>
/// Gets the last error that occured on the calling thread. If the last ...