Microsoft Visual Studio 2010 | Tools For Office Runtime -x64- ((link))

Deploying a 64-bit VSTO add-in requires more than just installing the runtime. You must ensure your deployment project is correctly configured for a 64-bit environment.

The following system requirements must be met to install and run the Microsoft Visual Studio 2010 Tools for Office Runtime -x64-:

To help resolve a specific issue or assist with installation, let me know: What is currently installed? What error message or behavior are you observing? microsoft visual studio 2010 tools for office runtime -x64-

: This usually indicates an outdated or missing runtime certificate, or the file location is not added to Office’s Trust Center. Update the runtime to its newest security path or move the file to a "Trusted Location" within your local Office settings. 3. Corrupted Installations After Windows Updates

Microsoft ended mainstream support for Visual Studio 2010 on July 14, 2015. Despite this, the VSTO 2010 Runtime remains a prevalent component in enterprise environments due to the longevity of Office 2010 and 2013 deployments. Deploying a 64-bit VSTO add-in requires more than

When you run the 64-bit installer, it will place files in the standard 64-bit directories. A common issue occurs when a setup application looks in the wrong location for the runtime.

: It has a "smart" loader. If you install it and a required .NET Framework extension is missing, the runtime will automatically wait and install it later when the requirements are finally met. What error message or behavior are you observing

In an x64 environment, these binaries are compiled as PE32+ (64-bit) executables to ensure compatibility with the x64 Office host.

: Before installation, you must have the .NET Framework 3.5, 4.0, or newer installed on the machine.

For new development projects, it is generally recommended to use the latest versions of Visual Studio and the Office developer tools. However, when supporting existing applications, you may still need this runtime.