I have a situation that I need to determine if a particular version of com
component is present on user's machine from .NET.
In COM I would invoke CoCreateInstance(CLSID_MyComponent2_0) and if this
returns an HRESULT with REGDB_E_CLASSNOTREG I would know that this class is

I wrote an application on my dev machine ( XP, Office 2002 ) that uses
the Excel type library 10.0
Now I want to deploy on a machine that runs w2k, Office 2000...that's
type 9.0 right?

I have an assembly which I want to use from COM.  My project's build
has a step to register for COM interop, and if I use COM/OLE Object
Viewer I can see my type library.
But, I want windows installer to do the registering.  So I have put an

Does anyone know how to capture keyboard scan codes using C#?  Thanks

I have this c function
GetR(
OUT ppp ** ppr,
OUT int * pn

I have been researching this problem for some time, and I am hoping someone
here can help.  I have more detailed code examples in a previous post
"Problem using ocx in VS.Net".
The COM obejct (OCX) I am trying to use has a method that accepts an array

What's nice about RTD (vs. DDE) is that excel can start the RTD/COM
server just by typing "=RTD("myserver",...)" into a cell.
I've written an RTD server in C# that runs great on my development
machine, but I'm having a heck of a time figuring out how to register

I've installed Visual Studio .NET 2003 on my Windows 2000 machine. I
installed IIS also.
It serves up HTML and .ASP pages but will not work with asp.net pages
(.asmx).

I am getting an error when trying to use an ADODB.Recordset that was passed
from a VB6 application to a VB.Net class library using COM Interop. I am
running this on WinXP SP2 using the .Net Framework 1.1 and MDAC 2.8 SP1.
This is what I've done:

I'm having a very weird problem with a wrapper I made around a com
object. While creating the wrapper I was testing it by means of a button
on a test form, and the COM wrapper worked just fine.
It was actually meant to be used in a multi-threaded environment. Now,

I have a process that starts starts a windows form .dll on a new
thread.  The class gets instantiated, and then the StartNavigation()
method is called.  The StartNavigation method runs the
AxSHDocVw.AxWebBrowser Navigate method.  As soon as the navigate method

I would like to call a method in an unmanaged C dll from C# using
VS2003. However, I haven't been able to
successfully do this so far. I am hoping that someone can help me get
this working.

I use SQL Server Merge Replication in a C# Smart Client. Everything works
quite well until I try to get the information about occured errors.
First I tried to do it like every sample in the web does. I accessed the
ErrorRecords property of the merge control, checked the Count ...

Here's the breakdown:
I have an old C DLL that I want to access via C#.
I'm doing this via an outer DLL that wraps the old C DLL in an unmanaged
C++ class, which is in turn wrapped in a Managed C++ class.  Both these

When developing .net applications that will use office, do you have to
target a specifik office version (like office 2000) or does it work with
several office versions?
Example, if I create an application that uses office 2000. Will this run on