.NET 4.5 Reviews & Product Details

.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.

Seller

Microsoft

Discussions

.NET 4.5 Community

Solution Type

Best-of-Breed

Overview by

Mayank Kaushik

Value at a Glance

Averages based on real user reviews.

Time to Implement

1 month

Perceived Cost

$$$$$

View More Pricing Information

Top-Rated Alternatives

View All Alternatives

User Insights

Average based on 82 real user reviews.

Implementation Time

1 month

Perceived Cost

$$$$$

.NET 4.5 Integrations

(3)

Integration information sourced from real user reviews.

.NET 4.5 Reviews FAQs

Generated using AI

Last updated: Nov 01, 2026

What is .NET 4.5, and what problem is it built to solve?

.NET 4.5 is a development framework used to build Windows desktop, web, and backend applications. It helps teams create and maintain business applications, including existing Windows-based systems.

What company sizes and industries is .NET 4.5 the best fit for?

The clearest fit is across small, mid-market, and enterprise teams, with strong representation in software and IT-related industries.

Company size: Small businesses, mid-market organizations, and enterprises.
Industry: Information technology and services, and computer software.
Other represented industries: Consulting and telecommunications.

What customer support options does .NET 4.5 provide, and how do users find the overall support experience?

Support experiences are mixed but useful for teams that can draw on documentation and community resources. Users value those resources, while setup, knowledge transfer, and troubleshooting can take effort.

What features or capabilities could make .NET 4.5 even more useful?

.NET 4.5 could be more useful with better portability and smoother compatibility when updating existing applications. Those improvements would help teams work across more environments and reduce migration friction.

Broader platform support: Improve cross-platform development and deployment beyond Windows.
More dependable upgrades: Reduce compatibility problems with older applications, APIs, and third-party libraries.

G2 reviews are authentic and verified.

Here's how.

Ritik R.

Software Engineer

Enterprise (> 1000 emp.)

1/24/2024

"It is very fast"

4/5

What do you like best about .NET 4.5?

It's easy to use and very feasible. I like the product very much Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

The availability and knowledge transfer of .net 4.5 is a challenge which needs to be solved Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: G2 invite

Yogesh P.

Data engineer

Information Technology and Services

Mid-Market (51-1000 emp.)

11/1/2023

"My Experience with .NET 4.5"

4.5/5

What do you like best about .NET 4.5?

What I like best about .NET 4.5 is its performance boost, making applications more responsive, and the simplified asynchronous programming with async and await keywords. Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

One drawback of .NET 4.5 is its limited support for some legacy technologies, which can pose challenges when working on projects that rely heavily on older components. Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: G2 invite

Uday P.

Information Technology Business Analyst

Mid-Market (51-1000 emp.)

1/16/2024

"I have used .net framework and it is really useful and learnt a lot."

5/5

What do you like best about .NET 4.5?

Easy of development environment and helping to get better customer engagement. Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

I have not focused about dislikes as it works for me. Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: G2 invite

Verified User in Computer Software

Mid-Market (51-1000 emp.)

1/16/2024

"Revolutionizing Development: Microsoft .NET 4.5 Highlights"

4.5/5

What do you like best about .NET 4.5?

ASP.NET Enhancements: WebSockets, Web API support, and improvements in WebForms showcased Microsoft's commitment to evolving web development. Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

Compatibility Challenges: Upgrading existing applications to .NET 4.5 may pose compatibility challenges, especially with older systems or third-party libraries that haven't been updated Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: G2 invite

Paul A.

System Specialist

Enterprise (> 1000 emp.)

12/7/2023

"Windows and web applications in .net 4.5"

4.5/5

What do you like best about .NET 4.5?

We can create applications windows and web using c# and ASP easily Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

No drawbacks to pin point as a suggestion upgrades need always to complete with competitors Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: G2 invite

Verified User in Program Development

Small-Business (50 or fewer emp.)

12/14/2023

"Good tool to make appa"

3.5/5

What do you like best about .NET 4.5?

Easy framework to make backends and apps Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

It is old now, but it still do the job easily Review collected by and hosted on G2.com.

Current UserValidated ReviewerIncentivizedSource: G2 invite

Naresh M.

Technical Lead

Mid-Market (51-1000 emp.)

10/24/2023

".NET 4.5 for Developing APIs"

5/5

What do you like best about .NET 4.5?

Its language features and its tool that Microsoft provides that eases development Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

Nothing specific.. I work on C# on a daily basis Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: G2 invite

Verified User in Health, Wellness and Fitness

Enterprise (> 1000 emp.)

Updated 9/11/2023

Originally submitted 5/13/2020

"Around 11 Year of Experience with. Net"

5/5

What do you like best about .NET 4.5?

. Net framework is easy to use, and can C# programming language works good with it. Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

I didn't find any negative point in . Net Review collected by and hosted on G2.com.

Recommendations to others considering .NET 4.5:

Great Programming Framework.

I started my career with the . Net still using C# in my programming.

Best framework which is upgraded Day by Day Review collected by and hosted on G2.com.

What problems is .NET 4.5 solving and how is that benefiting you?

Developed many system by using. Net 4.5 and previous version.

Its easy to use and scalable. Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: G2 invite

Muhammad Saad H.

Application Development Analyst

Information Technology and Services

Mid-Market (51-1000 emp.)

Updated 8/4/2022

Originally submitted 8/3/2022

".NET 4.5 is not easy to learn"

1.5/5

What do you like best about .NET 4.5?

It is cross-platform, easy to deploy and has a large community Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

Expensive, memory leak issues and database support issues Review collected by and hosted on G2.com.

Validated ReviewerIncentivizedSource: G2 invite

Verified User in Computer Software

Mid-Market (51-1000 emp.)

Updated 6/30/2021

Originally submitted 6/30/2020

Business partner of the seller or seller's competitor, not included in G2 scores.

".net 4.5 framework"

4.5/5

What do you like best about .NET 4.5?

Easily develop robust web apps. Love writing code in C#. Together with Visual Studio, it is a very powerful development environment. Review collected by and hosted on G2.com.

What do you dislike about .NET 4.5?

Windows is the main platform but that is changing now with .NET Core. Review collected by and hosted on G2.com.