Developer: How to find bitness (x86 or x64) of a given application?

I hear this query a lot how to find a bitness of a given application. Recently one of my customer followed by blog post and asked is there any alternate way exists to find out the bitness of installed Outlook in your environment.  He is an app developer, so he installed Microsoft Visual Studio at…


How to:Get MAPI Header and library files

Want to get and install MAPI header and library files? MAPI header and library files are included as part of the Microsoft Windows SDK. Once you have installed Microsoft Windows SDK, you can access MAPI header files by using Microsoft Visual Studio 2008. Before you can install MAPI header and library files, make sure that…


Development : Threading with Outlook Object Model?

Developers do complain when they use multi-threading the Outlook Object Model (OOM) API, it fails or hangs inside and outside of Outlook?  The reason behind this is the Outlook Object Model is not thread safe which means that COM will never allow multiple threads to enter concurrently.  Instead, it will serialize all calls using a…

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How to – Troubleshooting errors when you try to use Regsvr32.exe with COM DLL ?

I am adding this with the respect to my previous blog post regarding error message on 64-bit windows when you try run regsvr32.exe. Usually we – the developer customers –face the issue when you try to register. I want to update you that how the RegSvr32.exe program registers and unregisters a Component Object Model (COM)…


Error message on 64-bit windows when you try run regsvr32.exe?

When you attempt to run Regsvr32.exe to register a 32-bit dll (dynamic link library) on a 64-bit version of Windows, you receive the following error message: Filename.dll is not an executable file and no registration helper is registered for this file type. This behavior is by design. This behavior occurs because the Regsvr32.exe file in…

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Monitoring Event Sink # 32 – Best Practices: Performance related issues with Event sinks

I would like to share certain best practices – in order to improve the performance or overcome performance related issues associated with event sink and Programming guidelines for event sinks before you develop for your reference. Exchange store events do not by themselves generate Windows Event Log entries. The underlying ExOLEDB provider generates performance counters…


Development : Is Visual Basic 6.0 Runtime still supported?

We get many request/references regarding support of Visual Basic 6.0 runtime support for various Microsoft Operating systems including MS Windows 7. There is a wonderful article regarding this MSDN article titled “Support Statement for Visual Basic 6.0 on Windows Vista, Windows”. It states that the “…Visual Basic team is committed to “It Just Works” compatibility…

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Nutshell: Automation using # imports with Exchange Server environment is good or bad?

Automation using # imports ? As you know, Automation (OLE Automation), the technology that allows you to take advantage of an existing program’s functionality and incorporate it into your own applications. This technology can greatly simplify and speed up your development. # imports: In C/C++ preprocessor, we have a directive called "#imports" is available. Using…