Dmitry Kostochko

Add-in Express sim-ships with Visual Studio 2015 and Office 2016 Preview

I am happy to report good news to all Add-in Express users – we are one of the Microsoft partners to sim-ship our products together with the Visual Studio 2015 RC and Office 2016 Preview.

Add-in Express has committed to support the new VS version within 30 days of the releases of Visual Studio 2015 RC. So, you will be able to enjoy a fully compatible Add-in Express version when you install Visual Studio 2015 on the release day!

Since Microsoft has already published Office 2016 Preview, we decided to support it as well in the new version of Add-in Express for Office and .net.

The new versions of the following products are available:

Add-in Express for Office and .net – all-in-one framework for developing commercial class extensions for Microsoft Office applications such as Outlook, Excel, Word, PowerPoint, etc. The support for Visual Studio 2015 and Office 2016 Preview is added in the new major version 8, the first Beta is available for download on our web-site as well as on the Visual Studio Gallery.

Designer for WiX Toolset – an extension for Visual Studio that allows creating WiX-based setup projects in a familiar Visual Studio way. The new minor version supporting Visual Studio 2015 is published on the download page.

Please stay tuned for more information. We are going to send new license keys to Professional and Premium customers of Add-in Express for Office and .net with active subscriptions within the next few days.


  • Heath says:

    I’m having an awful time getting visual studio to import .ofs files created in outlook and can’t get the beta add-in express for outlook regions pro to load. Any help would be appreciated…

  • Svetlana Cheusheva (Add-in Express Team) says:

    Hello Heath,

    I am really sorry that you have had difficulties with our product. We sent you the new key for the beta by email. Did you receive it?

  • Russell says:

    Hi team, when do you expect to fully support Outlook 2016? We are using Add-in Express for Office and .net and would like to get a timeline.

  • Dmitry Kostochko (Add-in Express Team) says:

    Hi Russell,

    We plan to publish the release version of Add-in Express for Office and .net (version 8.0) in 1-2 weeks after Microsoft releases Office 2016.

  • Penn says:

    Need a new key to install the version 8, thanks.

  • Dmitry Kostochko (Add-in Express Team) says:

    Hi Penn,

    Please contact our sales department, they will send you a new key.

  • Mattias W says:

    How will this affect Addin Express? Will we be able to publish our Excel addins on Windows Store?

  • Dmitry Kostochko (Add-in Express Team) says:

    Hi Mattias,

    I am not sure I fully understand your question. I can assume you are asking about the Desktop App Converter. If so, I think it won’t affect Add-in Express in any way because, as far as I understand, this converter is purposed for converting applications (executables) only. If you are asking about something different, please clarify.

    >> Will we be able to publish our Excel addins on Windows Store?

    Of course, you will. Moreover, nothing prevents you from doing it right now. For example, you can find “Ultimate Suite for Microsoft Excel” created with Add-in Express on the Windows Store.

  • Serge says:


    The existing installation project (vdproj) includes a primary output for c ++ project (apart from other projects).
    The project is built without errors. When trying to build a wix project obtained with VDProj to WiX Converter, I get the error:
    heat.exe (0,0): error HEAT5313: Build error during harvesting: C: \ Program Files (x86) \ MSBuild \ Microsoft.Cpp \ v4.0 \ Platforms \ Win32 \ Microsoft.Cpp.Win32.Targets (518, 5): Specified platform toolset (v142) is not installed or invalid. Please make sure that a supported PlatformToolset value is selected.

    In C ++ project properties:
    Platform toolset: Visual Studio 2019 (v142)

    Visual Studio Professional 2019

  • Andrei Smolin (Add-in Express Team) says:

    Hello Serge,

    We don’t know what causes this. Maybe, you have WiX other than 3.11?

    If this is a support case, please contact us using the contact form at

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