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Spread.NET by MESCIUS is a versatile spreadsheet component for .NET applications, enabling developers to integrate Excel-compatible functionalities into Windows Forms, WPF and ASP.NET. With features like advanced data visualization, pivot tables, conditional formatting, and customizable formulas, Spread.NET handles large data sets efficiently and allows seamless Excel import/export. This tool is ideal for applications needing robust data analytics and reporting, such as financial software and business intelligence solutions, enhancing user experience with a familiar spreadsheet interface.
The Spread.NET 18 update enhances PDF export capabilities by delivering high-resolution outputs with improved image quality and rendering precision. This update aligns closely with Excel-compatible printing features, ensuring accurate representation of rich text, flat style modes, transparent shapes and header/footer images in PDF documents. Developers can now save individual sheets, entire workbooks or directly print to PDF, providing greater flexibility and efficiency. With these improvements, the PDF export functionality meets professional-grade standards, making it a reliable tool for creating polished, high-quality outputs directly from .NET spreadsheets.
To see a full list of what's new in version 18, see our release notes.
Spread.NET is licensed per developer and is available as a Perpetual License with a 12 month support and maintenance subscription. We can supply any Spread.NET license including new licenses, maintenance renewals, and upgrade licenses. See our Spread.NET licensing page for full details.
For more information, visit our Spread.NET product page.

Visual Studio installer authoring allows you to create professional, user-friendly installation packages for your applications by leveraging integration with third-party tools, all directly within the Visual Studio environment. This seamless integration provides powerful capabilities for managing installation workflows, such as handling dependencies, configuring registry settings, and incorporating custom scripts, while eliminating the need to switch between multiple platforms. By streamlining the packaging process within the same environment where your application is developed, it enhances productivity and ensures that your software is deployed efficiently and configured to meet the specific needs of end users and systems. With this functionality, you can deliver polished, ready-to-use applications with ease, all while staying focused on your development workflow.
Installation Tools offering Visual Studio installer authoring include:
For an in-depth analysis of features and price, visit our comparison of Installation Tools.

O2 Solutions offers advanced .NET components for PDF manipulation and rendering, designed to integrate seamlessly into .NET environments. Its flagship products, PDF4NET and PDFView4NET, make building robust PDF solutions simple. PDF4NET streamlines PDF creation and editing with an intuitive object model, eliminating the need for Adobe tools. PDFView4NET enables viewing, annotating, and printing PDFs, supporting Windows Forms and WPF with features like bookmark navigation and file attachments. Trusted by developers globally, O2 Solutions empowers efficient workflows and enterprise-grade application development.
O2 Solutions has introduced full support for .NET 9 in its PDF4NET and PDFView4NET products, ensuring seamless integration with the latest .NET advancements. This update allows users to leverage the enhanced performance, security, and features of .NET 9 while utilizing PDF4NET's powerful PDF creation capabilities and PDFView4NET's robust PDF rendering and viewing features. By maintaining day-zero compatibility, O2 Solutions continues to empower developers with cutting-edge tools for building modern, PDF-centric applications.
Support for .NET 9 is available across the O2 Solutions .NET product range:
O2 Solutions products are licensed per developer and include a 12 month subscription which provides all major and minor product updates and technical support. See our PDFBundle4NET licensing page for full details.

Structured document tools are specialized software designed to facilitate the creation, editing, and management of structured content formats such as XML, JSON, Markdown, and CSS. These tools are essential in domains where precise data representation and formatting are critical, including software development, web design, publishing, and data analysis. They combine editing capabilities with robust validation and visualization features, streamlining workflows for developers and content creators while ensuring adherence to established standards.
Common features include:
For an in-depth analysis of features and price, visit our Structured Document Tools Comparison.

ComponentOne Studio Enterprise by MESCIUS is a robust toolkit for .NET developers, offering an extensive suite of UI controls and tools tailored for building powerful desktop applications using WinForms, WPF, and other technologies. With its rich set of pre-built components, including advanced data grids, charts, and reporting tools, it enables developers to create visually appealing and highly functional applications with ease. By streamlining development and minimizing the need for custom coding, ComponentOne Studio Enterprise accelerates project timelines and enhances productivity, empowering developers to focus on delivering feature-rich and polished desktop solutions efficiently.
The ComponentOne Studio Enterprise 2024 v2 update introduces production-ready Microsoft Office 365 themes for Windows Forms and WPF controls, enabling developers to deliver desktop applications with modern, professional aesthetics that align with the latest Windows software styles. These themes include multiple variations such as white, gray, dark, green, and colorful, offering developers the flexibility to customize their applications to suit different user preferences and branding requirements. This enhancement streamlines the process of creating visually cohesive and up-to-date user interfaces for desktop applications.
To see a full list of what's new in 2024 v2, see our release notes.
ComponentOne Studio products are licensed per developer on a perpetual basis and include a 12 month subscription. Priority Support is also available. See our licensing pages below for full details:
For more information see the following product pages: