Oops, try { if (m_dicXmlSerCache.ContainsKey(TObj)) { // m_Log.DebugFormat(" Serializer Cache Hit: Type {0}", TObj) m_dicCacheHits[TObj]++; // for statistic purposes return m_dicXmlSerCache[TObj]; } else { XmlSerializer tSer = new XmlSerializer(TObj); m_dicXmlSerCache.Add(TObj, tSer); // just for keeping track of some statistics m_dicCacheHits.Add(TObj, 1); tSer.UnknownAttribute += new XmlAttributeEventHandler(XML_UnknownAttribute); tSer.UnknownElement += new XmlElementEventHandler(XML_UnknownElement); tSer.UnknownNode += new XmlNodeEventHandler(XML_UnknownNode); tSer.UnreferencedObject += new UnreferencedObjectEventHandler(XML_UnreferencedObject); return tSer; } } catch (Exception e) { m_Log.ErrorFormat("Error in SerializerCache: {0}", e.Message); } I didn't post the whole block. I think the handler are not the problem, this also happened before i wrote this cache object, which attached no handler at all. I also had the problem, that the try-catch didn't worked, only the VS handler shows up. But I have to access to the exception object there, so I can't check the inner exceptions. Something weird seems to happen here... Bye, Florian

For the interested ones, I found a solution: Type t = Type.GetType(typestring); object o = Activator.CreateInstance(t); This works, if you serialize the type on saving with GetType().ToString().

Florian Storck wrote: do you have a certain style for naming abstract classes (probably ATest, I guess ). No, there is very little hungarian notation used in .NET. It is generally frowned upon. I for interface is one of the very few examples. Scottish Developers events: * .NET debugging, tracing and instrumentation by Duncan Edwards Jones and Code Coverage in .NET by Craig Murphy * Developer Day Scotland: are you interested in speaking or attending? My: Website | Blog

Keep the control code seperate from your own. Make the control it's own seperate Project, then you can have it show up in the ToolBox. Dave Kreskowiak Microsoft MVP - Visual Basic

Maybe you are looking for "User Control" which are in the "Add Item" window. "Just about every question you've asked over the last 3-4 days has been "urgent". Perhaps a little planning would be helpful?" Colin Angus Mackay in the C# forum led mike

Hi, Alexander M. wrote: VS.NET does not need to detect unused routines because in release mode they are not included in the executable (removed by the linker). well, that's not my main problem. I want to use the information what is NOT compiled to do some refactoring and cleanup of the source code. Therefore it would be extremely useful to see all codelines marked, which are really existing in the binaries. Of course, this is just one small step into refactoring old code. Any tools or settings known to achieve this ? This was really nice in CBuilder. Bye, Florian

Hi Jörgen, well, that 's maybe worth a try. Thanks for your suggestion ! Bye, Florian

Meanwhile I switched to ATL, which seems to solve some of the problems. Main problem was obviously in the server, that I casted the reference to be returned via a static_cast to the IUnkown/IDispatch Base interface. This seemed to cause some hassle, when using other languages than C++. I now return a reference, which is initialized via the QueryInterface process for the IDispatch interface. No everythings working fine.