Creating COMs from vs2003 vs. 2008

[Jochen]

Hi, everybody
I got a problem producing C# COM projects with vs2008.
COM project created and compiled with VS2003 works fine with all kinds of
early and late binding in Office2002, vbscript (only late of course) etc.

Compiling exactly the same project with VS2008 (checkboxes for register and
make visible COM both checked) will apparently install the project properly
(comparing reg entries). The methods of the project can subsequently called
via vbscript w/o any problem. However, calling then via VBA (late and early
binding) will lead always to automation error (-2147024894). Note: the
object browser of the Office apps shows the COM project and its methods
alright!
When compiling the project in VS2008 I get several warnings like (translated
from German) "Interface IOleCommandTargetArgument is marked as [dual] but
not derived from IDispatch.It will be converted to an IUnknown derived
interface."

I tried all kinds of mods to the code and setup w/o any success.

Maybe somebody has an idea how to solve this or has stumbled over the same
problem.

Many thanks for yor help

PS: Have tried to get an answer to this problem via the group
ms.pub.de.german.entwickler.dotnet.csharp earlier w/o any reply