: You must be logged in as an Administrator to perform the installation.
To ensure security and compatibility, always download the runtime from official Microsoft sources: : You must be logged in as an
: A set of unmanaged DLLs that Office uses to actually load the runtime and your specific add-in. Key Prerequisites for Installation : You must be logged in as an
: Managed assemblies that provide the communication layer between your solution and Office applications like Excel or Word. : You must be logged in as an
Understanding the Microsoft Visual Studio 2010 Tools for Office Runtime (x86)
if you have the 32-bit version of Microsoft Office installed.
The runtime acts as a bridge between the .NET Framework and Microsoft Office. It consists of two core components: