I have an unmanaged DLL that I have written a managed wrapper around,
however I am getting intermitent crashes where it seems like the heap has
been corrupted.  My theory is that a garbage collection has moved something
that I didn't expect to be moved.  I have scoured the code ...

I'm trying to automate excel from visual c#.  One thing I need to be able to
test is if excel is even installed on the target machine and what version of
excel is installed on the target machine.  Is there a way to do this via c#
code?  

I know that Richard Grimes' book on Managed C++ is probably the most
complete ref on using managed/unmanaged C++ as a bridge to C#.
But I'm missing pieces here and there.  I'd like to find books and
references  that ramp up more gradually.  I need to fill in blanks in my

I'm hoping that someone could point me to the cause of this problem and
suggest a solution.
I have a C# program that dies with the following:
System.Runtime.InteropServices.COMException (0x80040154): Class not registered

I need to be able to pass streams across the Interop boundary. Using the
article http://support.microsoft.com/default.aspx?scid=kb;en-us;321695 I can
call into and ATL COM object that has a method
   STDMETHODIMP CSimpleObj::GetUnmanagedData(IStream** ppData)

First I want to check and make sure that I can call non-system dlls and
MFC dlls at that.
Assuming that I can, I've been getting an EntryPointNotFound exception
for the follow code:

I want to add a strong name to my class library
which depends on a COM Component, for which
the interop DLL is automatic build.
But the compiler always yells "Referenced assembly does not have a strong

I want to deploy an RCW to the GAC, my question is if I create a Windows
Installer to deploy this RCW to the GAC, do I also have to register the COM
.dll using the installer? How would I do this? Does anybody know of any good
examples of creating a windows installer to do some or ...

I have created a dll with some functions to use in excel, but after i
compile the code and try to use it in excel it gives me an error like it
could not find the file "mscoree.dll" who can i overdue this error? And why
does it show mscoree.dll and not my dll file name?

OK. It seems one is prevented from automatically 'registering for COM
interop' in the Configuration Properties if it's an .EXE project.
Tlbexp works and creates a .tlb but examining it with OLE viewer, the
publicly exposed .NET classes map to IDispatch interfaces with no

Need to be able to set the password for the account used by a given DCOM
object.  What options do I have here?  I don't suppose any of the native API
functionality for this has been wrapped in .NET yet?
To be clear on what I'm trying to change, if you run dcomcnfg and view an

I have a .NET assembly that I am trying to register as a COM dll.  The
problem that I am faced with, is that this assembly has two classes, one of
which is a Windows Form.  As of now, I have a ComRegisterFunction in both of
the classes, but I am getting a "DLLRegisterServer entry ...

I have a C# class and an unmanaged C++ class. I want them to
communicate with each other. (through function calls).
To achieve this, I create a managed C++ Wrapper class that takes a
delegate from the C# class, and try to convert it to a pure C++

Hi i have an application hosting webbrowser control in design mode. I also
wrote a custom OleUndoManger. My problem is if I move or resize a html
element the application crashes. With NullPointerException.
Can anybody check if the definition is correct?

Nedd help with marshaling:
have this struct in C:
typedef struct OB{
unsigned char        bC;