VSTO Runtime Versions
Contains the Office extension interfaces. Visual Studio 2019 uses such a runtime. Visual Studio 2017 uses a specific runtime. 2010 VSTO runtime (v4) – 64 bit. 3.5, 4.0, 4.5.
Can I uninstall Microsoft Visual Studio 2010 Tools for Office Runtime x64?
Yes, you can uninstall them if you are not using Microsoft Visual Studio.
Original by design
What is x64 package in Visual C++?
The Microsoft Visual C++ 2010 (x64) Redistributable Package installs the runtime components of the Visual C++ Libraries required to run 64-bit applications developed with Visual C++ on a computer that does not have Visual C++ 2010 installed. This package installs the runtime components of the C Libraries Runtime (CRT), Standard C++, ATL, MFC, OpenMP and MSDIA.
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Visual Studio 2010 Tools For Office Runtime
Do I need Microsoft Visual Studio 2010 Tools for Office Runtime x64?
If you want to open analyzes and use Microsoft Excel 2007 or Excel 2010, you need to install Microsoft Visual Studio 2010 Tools for Office Runtime (version 10.0.60724). This is not particularly necessary for other versions supported by Microsoft Excel.
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This download installs Visual Studio 2010 Office Tools for Runtime, which is required to run Microsoft Office-based solutions built with Microsoft Visual Studio 2010, 2012, 2013, and even 2015.
“VSTO” redirects here. For Alvin Curran’s string quartet, check out VSTO (string quartet).
Visual Studio Tools to Get Office (VSTO) is a set similar to developer tools available as a Visual Studio Add-in (Project Templates) and Runtime that allows Microsoft Office 2003 and Office Application Hosts to later use this .NET Framework Common Language (CLR) to expose its functionality through .NET.
This allows extensions to Office applications to be written in CLI-compatible languages, and Office application features and programming constructs to be used in .NET applications. Extensions to Office Office 2003 were previously allowed create COM add-ins using only Visual Basic or Visual C++, and a “developer” version was also offered to allow VBA developers to create COM add-ins.
VSTO Developer replaces Office 1500 and Office XP editions to promote Office. Developer editions of Office were also discontinued after the release of Office XP. VSTO is only available for Office 2004 and later. Although the environment isNotes VSTO is part of the VSTO Progress Tools and can also be downloaded separately if required. COM add-in development is still possible for Office 2000 and all later versions as long as the shared add-in model is used in each version of Microsoft Visual Studio.
VSTO Add-ins (also Project Type Controls) are also developed using Visual Studio. For Visual Studio .NET 2003, Visual and Studio 2005 were only available against each other as separate editions with .NET “language” support limited to Visual Basic .NET and C#. It was also included in this part of Visual Studio Team System 2005.
Later, Visual Studio Tools for Office 2005 Edition Second (VSTO 2005 SE) was developed as a free add-in for Visual Studio Professional and then sold with support for Office 2007 and 2003. However, Visual Studio Professional Edition only installs application-level add-ins; Note that this does not add a custom document-level redesign or other features (action bar, control organization, visual basic 2010 runtime x64 document designer, etc.) that you can choose from the full VSTO or Team System editions.[ 2] 
Previous version – I Visual Studio Tools for Office 2012 (VSTO 4.5), which supports Office 2016, Office 2013, Office 2010, and Office 2007.
Like VBA, code written for VSTO typically runs from a separate virtual machine (CLR) hosted in Microsoft Office applications. Instead of VBA, where the code is hidden in the document file itself, the settings that VSTO was written with are stored in separate CLI assemblies that are connected to documents via custom properties.
How do I install VSTO?
Save many open works and close Microsoft Excel completely when you open them.
Open the Add or Remove Programs dialog box in the Windows Control Panel.
In this dialog, find all of our Microsoft Visual Studio 2010 tools for Office.
If the properties are still present, Microsoft Office will host the new common language runtime (CLR) and load the assembly specified in the property into a shared application domain named after the document’s name. VSTO applications are experiencing a problem secure access to .NET Framework code, in addition to digitally signing according to the permissions model that governs VBA macros. Development 
vsto is typically run with Visual Studio, which is used by professional developers. The Office application is launched (re-started) every time you debug. Typically developed from each of our office applications, vba does not require any special tool.Yes. VBA also benefits from a macro recorder capable of generating VBA code based on user actions, which is useful for non-professional programmers.
Where is Vstor_redist exe?
This is a manual executable. You can find it in Task Manager as vstor_redist.exe process.
VSTO has full access to all Office object models. Is it possible to perform all operations on the exact desktop client. Functions that require access to ma filesystemsbus and most other applications are achievable and easy to run in VSTO. C# Any CLI or other programming language can be used to create new Office Add-ins.
VSTO Add-in Vs. Features
The latest version of VSTO in 2018 is Office Tools for Visual Studio and is available with all versions of Microsoft Visual Studio 2017.
VSTO 2003, 2005, 3.0 with 2010 runtimes are installed in parallel (SxS) mode. The VSTO 2005 SE runtime modifies the previous VSTO 2005 runtime. The VSTO 2010 runtime will be installed with VSTO 3.0, but Office 2007 applications will also use the VSTO 2010 doctrine. All older VSTO solutions will continue to work in newer versions due to Office, if the doctrine on which they were developed, is often established.
VSTO solutions designed for more modern versions of Office will not work in all older versions of Office because they lack the required Primary Interop Assemblies (PIAs).  Office 2010 applications will always use the VSTO 2010 runtime. The design-time basis is as follows:
How do I install Microsoft Visual Studio Tools for Office runtime?
Install it. NET Framework 4 or higher. For distribution.
Run vstor_redist.exe to install the Visual Studio Tools for Office Runtime. These assembly files can be downloaded from the Visual Studio 2010 Tools for Office Runtime.
Can I uninstall Microsoft Visual Studio 2010 Tools for Office runtime x64?
Yes, you can remove this type if you are not using Microsoft Visual Studio.