Aspose.Words or VSTO

When you need to compare which product is best for your solution, there are many criteria to evaluate, but the main focus will often be the functionality and effort required to use the product.

If you are looking for a faster, simpler, and lighter file format library to process files, then you might want to compare Aspose.Words for .NET and VSTO. Then you will be able to notice that in fact these products do not compete, but solve slightly different user tasks.

VSTO, or Visual Studio Tools for Office, or Microsoft Visual Studio Tools, is used by developers to write code that connects Microsoft Office Word, Excel, and Outlook applications.

Aspose.Words for .NET is an advanced class library for .NET that enables you to perform a wide variety of document processing tasks directly within your .NET applications. With Aspose.Words you can create, modify, convert, display, and print documents without using Microsoft Word.

Why not VSTO

If you need to complete some non-standard or unpopular document-related task, then VSTO can help you implement such a solution. In other words, VSTO can be used to extend the capabilities of Microsoft Office based on the specifics of your problem.

If your document-related tasks are popular, it is highly likely that Aspose.Words provides you with an API for creating an effective and quick solution. It is worth noting that with Aspose.Words you can handle some pretty tricky and complex situations because it provides really powerful and comprehensive tools. This way you save time and do not reinvent the wheel.


Aspose.Words is thoroughly tested and packaged in a single DLL without requiring any additional parts to be installed to work.

Scalability and Speed

Aspose components are highly scalable and lightning fast. They are a true .NET solution and perform flawlessly on either a single server powering a single application or a load balanced web farm powering an enterprise application.


Aspose.Words provides everything you need to work with documents:

See Also