I've looked, and can't find the solution.  I'm hoping someone here could
help.
I've got a .NET component that I'm accessing from both .NET clients and
unmanged C++ clients (via COM interop).  The component has several

I would like to use lib compiled by VS 6.0 in C# project. I know that
it can be used by managed code, but there is a case which I can't
solve.
The problem is to use advantages of virtuality in managed/unmaged

I am needing to know how to translate the VarArrayCreate method in Delphi into c#.  Let me step back and explain the scenario
I am in the process of converting a Delphi program over to C#.  The ActiveX component is Tidestone's F1Book spreadsheet that was developed prior to the  ...

Is there a more elegant way to solve the authentication problem when using
COM components in ASP.NET application? I have found some tips on how to
solve this issue, but the only one that worked to me was setting identity
impersonate element at web.config file to a valid user. The ...

We're having problems passing arrays from ASP pages to .NET (Interop) classes.
Let's assume that we just want to pass a string array (byref) from ASP to .Net.  The first problem is that unless we declare the array as object[] in .Net, we get a error from ASP.  This may be a ...

I've made a C# dll that I'm accessing with VB6 clients. My problem is
that when I make changes to the C# dll the clients stop working. This
makes bug fixes quite an ordeal.
I've read that for versioning purposes it is best to make a separate

There seem to be two basic ways of dealing with lParam values when
overriding the WndProc --
1) us Marshal.PtrToStructure/StructureToPtr
2) use an unsafe code block and do a cast

I think is possible to call a .NET library (managed code)
from a Win32 library (unmanaged code) if the NET library
is COM registered, is it true?
Any way, is there any other way?

In a managed class implemented as a com object, I want to pass a window handle from the client into the com object and use it as the parent of a form shown as a dialog.   How can I convert the handle (passed as a long) into a IWin32Window object

We have a Windows Service developed using C# that is setup to
automatically generate Excel reports and copy them to multiple shares
based on certain daily criteria.  The development env is .NET
Framework 1.1, Office XP plus Office SP PIA, VS.NET 2003 on Win XP

I'm trying to work out the best way of handling the following situation.
I have a class which instantiates a COM object in its constructor and calls
an Advise method on it (the object does not implement the usual connection
points interfaces so I can't just listen for events as I ...

hi, I need to use existing COM IOleUndoManager implementations, but I cant' seem to make this interface known to the .Net. The DLL it is defined in (oleaut32) I cannot add to the references. Does somebody know what I need to reference to get access to the definition
Thanks a lot, ...

I'm trying to write an exit module for the Microsoft Certificate Authority
in C#.
I've wrapped certxds.dll to an interop and implemented the CCertExit
Interface

I'm doing some COM Interop against SAPI 5.1 using an Interop Assembly.
Many simple things are working fine - the Word & Sentence events fire well.
However the Audio event does not fire at all meaning I can't add a VU meter
I have specified the required event in the EventInterests ...

Can someone please tell me what I'm doing wrong?  I'm writing an application
that should be using callbacks to perform asynchronous calls to the Win32
API.  Problem is it never reaches my callback function.  Any feedback is
appreciated.  Also, any references to websites with ...