Downloading the is typically handled through NuGet Package Manager or by installing Primary Interop Assemblies (PIAs) rather than downloading a standalone file from a third-party site. This DLL is a crucial component for .NET developers who need to programmatically control Microsoft Word to automate tasks like document generation, mail merges, or file conversions. What is Microsoft.Office.Interop.Word.dll?

In , right-click References (or Dependencies) > Add Reference . Navigate to the COM tab.

For modern .NET projects, the most efficient way is to install the package via the NuGet Gallery. Open your project in .