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IIS vs Microsoft .NET Framework comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 5, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

IIS
Ranking in Application Infrastructure
1st
Average Rating
8.0
Reviews Sentiment
7.0
Number of Reviews
56
Ranking in other categories
Application Server (4th)
Microsoft .NET Framework
Ranking in Application Infrastructure
4th
Average Rating
8.4
Reviews Sentiment
7.2
Number of Reviews
53
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Application Infrastructure category, the mindshare of IIS is 12.5%, down from 13.4% compared to the previous year. The mindshare of Microsoft .NET Framework is 5.8%, down from 6.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure
 

Featured Reviews

VikramSingh6 - PeerSpot reviewer
A simple and easy-to-use solution but not recommended for public apps
I would rate the overall solution a six out of ten. We have around five to six developers and engineers for the solution’s deployment and maintenance. You can use the solution if your website is not too big or complicated. However, if it is big and complicated, then you need to use Apache or Red Hat. This tool can be used for internal purposes. But if you plan to host a public app, then I wouldn’t recommend the tool.
Pavan Kodur - PeerSpot reviewer
Intuitive, easier to develop, maintain, and migrate from the old framework to newer versions
There are a few areas where they could compete better with products like React or Angular – the popular SPA (Single Page Application) frameworks. Microsoft has its own product called Blazor, but I don't think it's quite as powerful yet as React or Angular. I think that's an area for improvement. For example, HR asked me to build something that worked offline and online. Microsoft products don't really support that well, as I'd have to rely on browser databases. React and Angular are better for that. If I need something faster, I'd definitely use React. So, I see Microsoft lagging a bit in that area.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"IIS is stable."
"The tool is very easy to use and efficient."
"It is an easy-to-use and secure program."
"Microsoft's technical support has always been very good."
"All the features of Microsoft IIS are valuable."
"IIS's best features are its management console and stability."
"The product's most valuable features are performance and security."
"The most valuable feature of IIS is that it's free, and it works."
"The addition of generics to handle common functionality across types, and the more recent upgrade of the dataset to the Entity Framework, has cut development time drastically, while increasing quality and confidence between builds."
"The most valuable features are the Domain Controller and the WBFS Manager."
"The .NET Framework is easier to use because it provides a wide range of libraries."
"In my opinion, the best thing about Microsoft .NET is the fully featured framework. It provides most of the things which a normal developer requires of any application out of the box."
"The .NET Framework is a very good framework. It does what I need it to do."
"The solution is not limited in storage, is customizable and simple to use."
"The Windows Communication Foundation is the biggest advantage we get from the .NET Framework."
"The product has a good interface and easy-to-use programming language."
 

Cons

"The scalability depends on how you have set it up. If you're running IIS on a single server, it might not be as capable as if you are on many in a cluster or with load balancing and so on."
"IIS could improve the error logging. There are times we are not able to see the errors. More details would be helpful. Additionally, the configuring of the IIS should be allowed through coding instead of the classic view."
"Scalability issues and security concerns need attention from Microsoft."
"There is an issue with the network. The tool's price is also high."
"The solution's pricing and stability need improvement."
"If Microsoft IIS could work well with AppOptics or things like PHP, Python, and other custom languages that run on the webserver, it would be ideal. I think there are cases where people need to use Apache instead of IIS when IIS doesn't work well with other web languages."
"IIS needs to improve its security. Its support needs to be faster and clear. The tool's licensing could be cheaper as well."
"In the next release, I would like to see better integration between the cloud environment and the on-premises environment."
"There are performance constraints when multiple users are accessing the application and that consumes CPU resources."
"They could enhance support for Python within Visual Studio, as integrating Microsoft products with other frameworks can present a steep learning curve."
"The integration could improve in Microsoft .NET Framework."
"The solution could improve by optimizing the memory for better performance."
"The learning curve could be improved."
"The product is nearing its sunset, and we think that by 2028, we won't get support anymore"
"You need to have the technical expertise to use this product."
"Difficult to scale this product for large organizations."
 

Pricing and Cost Advice

"The solution’s pricing is yearly. The pricing is affordable and not high."
"This solution comes included with Windows Server."
"The price of the cloud system is a bit high."
"There is a license needed for the solution."
"I think it's part of the Windows Server, so you won't have any other costs to add in order to use the IIS service."
"Users can get a subscription-based license or a perpetual license for IIS."
"We pay a yearly licensing fee for the solution."
"IIS comes along with an OS license from Microsoft. Others can opt for a perpetual-based licensing model to be able to use the system."
"Microsoft .NET Framework is a free, open-source solution."
"It's an expensive solution"
"The Microsoft .NET Framework is free of charge, without licensing cost."
"The product is not expensive."
"The solution is a bit costly when compared to open source products or open gear licenses."
"Microsoft .NET Framework is licensed under the Windows License."
"Microsoft .NET Framework is very cost-effective for corporate users."
"There is a Community Edition that can be used free of charge, but the licensing cost for the Enterprise version is quite high."
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Top Industries

By visitors reading reviews
Computer Software Company
16%
Financial Services Firm
15%
Manufacturing Company
9%
Government
7%
Financial Services Firm
11%
Computer Software Company
11%
Real Estate/Law Firm
11%
Construction Company
11%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

Which is better - IIS or NGINX Plus?
IIS is a flexible, secure, and manageable web server to host anything on the web. IIS’s scalable and open architecture can handle the most demanding tasks. From media streaming to web applications,...
What is your experience regarding pricing and costs for IIS?
If you have a Windows license, there is no additional cost for IIS. However, you may need to pay for SSL publishing at times.
What do you like most about Microsoft .NET Framework?
Microsoft .NET Framework continually innovates, particularly in Visual Studio, which focuses on improving languages, debugging, and .NET functionality.
What is your experience regarding pricing and costs for Microsoft .NET Framework?
The company is not paying anything for the license. I am not familiar with this area. For us, it's free.
What needs improvement with Microsoft .NET Framework?
There may be some topics regarding connectivity and management of certificates that require attention. We are currently facing some issues.
 

Also Known As

Windows Server IIS
MS .NET Framework
 

Overview

 

Sample Customers

Erste Bank Group, NJVC, Samsung Electronics, Sheraton Hotels and Resorts, Tata Steel Europe, Urban Software Institute
Curtin University, Rockwell Automation, Aruba Networks, Insurity Inc., City of Barcelona, Pennsylvania DCNR, University of Petroleum and Energy Studies, A1 Telekom Austria AG, Eastman Chemical Company
Find out what your peers are saying about IIS vs. Microsoft .NET Framework and other solutions. Updated: March 2025.
845,406 professionals have used our research since 2012.