com

I am trying to call a C# COM object from C#. I created a class library in C# and exported a Type Library using tlbexe.exe. I then registered the type library using regtlibv12.exe. However when I add a reference to my COM object in Visual Studio I get an error saying: "The Active X type library ... was exported from a .NET assembly and cannot be added as a reference. Add a reference to the .NET assembly instead." Any assistance would be greatly appreciated. A 64bit process cannot access the 32bit unmanage code directly. There are 2 domains for COM objects on a 64bit system. One for 64bit

Didn't quite get the following from MSDN : ClassInterfaceType.None Indicates that no class interface is generated for the class. If no interfaces are implemented explicitly, the class can only provide late-bound access through the IDispatch interface. This is the recommended setting for ClassInterfaceAttribute . Using ClassInterfaceType.None is the only way to expose functionality through interfaces implemented explicitly by the class. Is [ComVisible(true)] a must for COM visibility? See this blog post for the expanation of the first problem. The point is that unless you specify

I've implemented an IFilter as a native VC++ ATL in-proc COM server. Windows Search wouldn't use it - it creates an instance of my IFilter and then executes a bunch of QueryInterface() calls, specifically: IMarshal IStdMarshalInfo something with {4C1E39E1-E3E3-4296-AA86-EC938D896E92} interface id and a couple of others. Since my IFilter only implements IFilter, IPersist and IPersistFile most of the calls return E_NOINTERFACE, so Windows Search just releases my object and does nothing. Why is it querying for those interfaces and how do I work the problem around? Shay Erlichmen Windows tries

I have the following configuration: 1) Windows 10 64-bit 2) An application that has only a 32-bit version and is available through COM. I access the .dll file of the 32-bit application using the tlbimb.jar to generate the interfaces needed and I succeed. Scenario 1: I try to access the 32-bit application using the Java 8 32-bit installation. I can invoke the methods through COM succesfully without any problem. Scenario 2: I try to access the 32-bit application using a Java 8 64-bit installation. I get an error message: Exception in thread "main" com4j.ExecutionException: com4j.ComException:

I know how to get all open explorer windows , using Microsoft Internet Controls COM library. From this, I am able to find the LocationURL of those windows. However, this is only set for paths on the file system. Seemingly when virtual objects are displayed, like network printers or the recycle bin, LocationURL is empty. LocationName still seems to be set to the name which is visible on the start bar. When LocationURL is set, this is sufficient for my purposes to know where the explorer window is pointing to, but how can I find out what it is pointing to for these special folders? Reading up a