COM

Not long ago I ran into a COM interop problem that was a bit tricky to fix. So I’m sharing the problem and the solution here in case others encounter the same problem. I had this native in-proc COM server that initially was built only for x86. It was used in a native MFC application…

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Windows Runtime, or shortly WinRT, is a new runtime (siting on top of the Windows kernel) that allows developers to write Metro style applications for Windows 8, using a variety of languages including C/C++, C#, VB.NET or JavaScript/HTML5. Microsoft has started rolling out information about Windows 8 and the new runtime at BUILD. WinRT is…

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If you work with COM, apartments is one of the concepts you must comprehend, because it’s an important topic. Before explaining what apartments are let’s think about classes and objects regardless of COM. When you build a class, you know (or you should) whether objects of that class will be used from a single thread,…

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If you are working with COM there are several registry entries that are important and that you need to understand. I will try in this post to clarify them. But before that, let’s enumerate the three possible COM server scenarios. (As a side note, a COM server is a DLL or EXE can contains one…

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