--- title: ".NET 4.5 Reviews" meta_title: ".NET 4.5 Reviews 2026: Details, Pricing, & Features | G2" meta_description: Filter 81 reviews by the users' company size, role or industry to find out how .NET 4.5 works for a business like yours. aggregate_rating: rating_value: 4.2 review_count: 81 scale: '5' date_modified: '2026-08-07' parent_category: name: Development url: https://www.g2.com/categories/development --- # .NET 4.5 Reviews **Vendor:** Microsoft **Category:** [Other Development Software](https://www.g2.com/categories/other-development) **Average Rating:** 4.2/5.0 **Total Reviews:** 81 ## About .NET 4.5 .NET Framework 4.5 is a comprehensive and consistent programming model developed by Microsoft for building applications with visually stunning user experiences, seamless and secure communication, and the ability to model a range of business processes. This version introduces significant enhancements that improve developer productivity and application performance. Key Features and Functionality: - Asynchronous Programming: Incorporates the `async` and `await` keywords, simplifying asynchronous code and enhancing application responsiveness. - Networking Enhancements: Adds support for WebSockets, enabling real-time, bidirectional communication between client and server. - ASP.NET Improvements: Introduces model binding for Web Forms, allowing for cleaner and more maintainable code. - Windows Presentation Foundation (WPF) Enhancements: Includes the new Ribbon control for rich user interfaces and improved performance when displaying large data sets. - Windows Communication Foundation (WCF) Updates: Simplifies configuration and supports multiple authentication modes on a single endpoint. - Windows Workflow Foundation (WF) Enhancements: Adds support for state machine workflows and improved designer features. Primary Value and Solutions Provided: .NET Framework 4.5 addresses the need for developers to create high-performance, scalable, and responsive applications across various platforms. By introducing asynchronous programming patterns, it allows applications to remain responsive under heavy workloads. The support for WebSockets and improved networking capabilities enable the development of modern web applications with real-time communication features. Enhancements in ASP.NET, WPF, WCF, and WF provide developers with powerful tools to build rich user interfaces, efficient communication systems, and complex workflows, thereby reducing development time and improving application maintainability. ## .NET 4.5 Pros & Cons **What users like:** - Users praise the **stability and async/await architecture** of .NET 4.5, enhancing responsiveness in AI applications. (8 reviews) - Users praise the **excellent performance efficiency** of .NET 4.5, appreciating its seamless async/await implementation. (8 reviews) - Users appreciate the **ease of coding and debugging** with .NET 4.5, enhancing their development experience and productivity. (7 reviews) - Users appreciate the **huge class library and async/await features** , simplifying development while ensuring high performance and fewer bugs. (7 reviews) - Users value the **easy and smooth debugging** experience in .NET 4.5, enhancing overall development efficiency. (4 reviews) - Users appreciate the **development ease** of .NET 4.5, noting its predictability and smooth debugging experience. (4 reviews) - Development Efficiency (4 reviews) - Debugging Tools (2 reviews) - IntelliSense (2 reviews) - Productivity Improvement (2 reviews) **What users dislike:** - Users find **compatibility issues** with .NET 4.5 due to reliance on older frameworks, limiting access to modern features. (6 reviews) - Users find the **limited features** of .NET 4.5 outdated, lacking support for modern cross-platform development. (6 reviews) - Users find .NET 4.5 to have **missing features** , limiting its effectiveness for modern applications and third-party integrations. (5 reviews) - Users find the **learning curve steep** , particularly for beginners struggling with C# syntax and project structure. (3 reviews) - Users express frustration with the **limited cross-platform compatibility** of .NET 4.5, hindering deployment flexibility. (3 reviews) - Software Heaviness (3 reviews) - High Resource Usage (2 reviews) - Learning Difficulty (2 reviews) - Complexity Issues (1 reviews) - Users find the **initial setup process complex** , making it time-consuming compared to newer frameworks. (1 reviews) ## .NET 4.5 Reviews ### 1. A Reliable and Feature-Rich Development Platform with Room for Improvement **Rating:** 4.5/5.0 stars **Reviewed by:** Md R. | Strategy Specialist – Operations & Process Improvement , Small-Business (50 or fewer emp.) **Reviewed Date:** February 19, 2026 **What do you like best about .NET 4.5?** The async/await programming model introduced in .NET 4.5 is a game-changer for asynchronous programming . It significantly simplifies writing asynchronous code, making it more readable and maintainable. The performance improvements in the Common Language Runtime (CLR) are notable, with better memory management and faster execution for many operations . The framework also offers excellent integration with Windows services and enterprise applications, making it ideal for business-level development. Additionally, the extensive library support and comprehensive documentation make development smoother and more efficient. **What do you dislike about .NET 4.5?** The lack of cross-platform support is a significant drawback—it's Windows-only . The framework has become legacy technology, with Microsoft focusing on .NET Core/.NET 5+ for future development . The heavyweight nature of the framework can lead to larger application deployment sizes. Some modern language features available in newer .NET versions are missing. The asynchronous programming model, while improved, still has limitations compared to more modern approaches. **What problems is .NET 4.5 solving and how is that benefiting you?** It effectively solves legacy Windows application maintenance, enterprise desktop application development, and provides stable runtime for internal business tools. It remains suitable for organizations with existing .NET 4.5 investments that cannot yet migrate. Business Problems It Helps Solve Maintaining critical legacy enterprise applications Windows-only internal tool development Organizations with long-term Microsoft infrastructure investments Regulatory environments requiring stable, well-documented technology ### 2. .NET Framework 4.5: Stable and Reliable **Rating:** 4.0/5.0 stars **Reviewed by:** Shruti S. | Software Tester, Information Technology and Services, Small-Business (50 or fewer emp.) **Reviewed Date:** October 14, 2025 **What do you like best about .NET 4.5?** I’ve used .NET Framework 4.5 mainly for developing Windows-based applications, and it’s been a very stable and reliable platform. The integration with Visual Studio makes coding and debugging much easier, especially for beginners like me. I also like how it handles memory and exceptions efficiently. **What do you dislike about .NET 4.5?** Because this is an older version, it lacks the modern cross-platform capabilities found in .NET Core or more recent releases. Some of the libraries seem somewhat outdated, and the initial setup process can be a bit more time-consuming than with newer frameworks. However, after everything is configured, it operates smoothly. **What problems is .NET 4.5 solving and how is that benefiting you?** It helps me build and test small desktop applications quickly and understand the basics of application development. It’s also great for maintaining older projects that still run on Windows. Overall, it’s been a good learning and development experience, ### 3. .NET 4.5: Stable, Reliable, and Great Visual Studio Tooling **Rating:** 4.0/5.0 stars **Reviewed by:** Ravi p. | Software Engineer, Computer Software, Enterprise (> 1000 emp.) **Reviewed Date:** January 21, 2026 **What do you like best about .NET 4.5?** I like that .NET 4.5 is very stable and reliable. It works well for building desktop and enterprise applications, and features like async/await make the code easier to write and manage. The tooling support in Visual Studio is also very good, which helps in debugging and development. **What do you dislike about .NET 4.5?** .NET 4.5 feels a bit old now. It doesn’t have many of the modern features and performance improvements that newer .NET versions offer. It’s also not ideal for cross-platform or cloud-native applications compared to the latest frameworks. **What problems is .NET 4.5 solving and how is that benefiting you?** .NET 4.5 helps in creating stable and maintainable applications without much complexity. It makes handling asynchronous tasks easier and integrates well with existing Microsoft tools, which saves development time and reduces bugs. ### 4. Excellent Performance, Stable and Easy Coding with Strong Microsoft Support **Rating:** 5.0/5.0 stars **Reviewed by:** Melissa G. | sales consultant, Small-Business (50 or fewer emp.) **Reviewed Date:** January 21, 2026 **What do you like best about .NET 4.5?** Excellent performance, the ease of coding/debugging, stability, strong Microsoft support/direction **What do you dislike about .NET 4.5?** Limited cross-platform compatibility, less intuitive **What problems is .NET 4.5 solving and how is that benefiting you?** It has a smoother debugging and more helpful IntelliSense within the visual studio ### 5. .NET 4.5: SMOOTH ASYNC, , SOME BUMPS TOO **Rating:** 4.0/5.0 stars **Reviewed by:** Rajesh D. | Staff Engineer, Enterprise (> 1000 emp.) **Reviewed Date:** October 14, 2025 **What do you like best about .NET 4.5?** I really like the async and await features - they make writing asynchronous code much easier. The build -in zip compression is super handy for handling files. Also, the improved garbage collection helps apps run smoother and faster **What do you dislike about .NET 4.5?** It still lacks full support for cross-platform development. Some older libraries and APIs are deprecated or limited. Also, debugging aync code can be tricky at times **What problems is .NET 4.5 solving and how is that benefiting you?** .NET 4.5 async programming easier, so my apps don't freeze while waiting for tasks. It also improves performance with better garbage collection and parallel processing. That means my software runs faster and feels smoother for users ### 6. Async/Await Boosts Productivity, But Cross-Platform Support Still Lags **Rating:** 4.0/5.0 stars **Reviewed by:** Mallika G. | Workforce Transformation, Mid-Market (51-1000 emp.) **Reviewed Date:** October 26, 2025 **What do you like best about .NET 4.5?** I like .NET 4.5 for its improved performance and the introduction of async/await, which made asynchronous programming much simpler and more efficient. **What do you dislike about .NET 4.5?** I dislike that .NET 4.5 still had limited cross-platform support and relied heavily on the Windows ecosystem, making deployment less flexible compared to newer .NET versions. **What problems is .NET 4.5 solving and how is that benefiting you?** .NET 4.5 solves problems of complex asynchronous coding and performance bottlenecks, helping me build faster, more responsive, and scalable applications with cleaner code. ## .NET 4.5 Discussions - [Can I install .NET 4.5 Windows 10?](https://www.g2.com/discussions/can-i-install-net-4-5-windows-10) - [Is .NET 4.5 supported?](https://www.g2.com/discussions/is-net-4-5-supported) - [Is .NET Framework 4.5 free?](https://www.g2.com/discussions/is-net-framework-4-5-free) - [View .NET 4.5 pricing details and edition comparison](https://www.g2.com/products/net-4-5/reviews?filters%5Bsentiment_snippet%5D=2331541&qs=pros-and-cons§ion=pricing&secure%5Bexpires_at%5D=2026-08-14+20%3A00%3A05+-0500&secure%5Bsession_id%5D=ede88c77-7bbc-4801-aed9-3f247f433d16&secure%5Btoken%5D=107c3e812bd373d3705a268bb7e874cfbfd4dbb8acc6347d14481b780dd203b1&format=llm_user) ## .NET 4.5 Integrations - [Microsoft SQL Server](https://www.g2.com/products/microsoft-sql-server/reviews) - [Visual Studio](https://www.g2.com/products/visual-studio/reviews) - [WordPress.org](https://www.g2.com/products/wordpress-org/reviews) ## .NET 4.5 Features **Functionality** - Ease of Use - File Management - Multi-Language Support - Customization - Straight-Out-the-Box Functionality - Help Guides - Patching & Updates - Deployment Management **Additional Functionality** - Code Development - Debugging - AI Copilot - Generative AI - Game Development - Web/Mobile App Development - Data Modeling - For Developers - Code Editing - Website Development - Graphical User Interface ## Top .NET 4.5 Alternatives - [Essential Studio](https://www.g2.com/products/essential-studio/reviews) - 4.5/5.0 (789 reviews) - [Okta](https://www.g2.com/products/okta/reviews) - 4.5/5.0 (1,343 reviews) - [Termius](https://www.g2.com/products/termius/reviews) - 4.8/5.0 (264 reviews)