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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
57
Ranking in other categories
Application Server (5th)
Microsoft .NET Framework
Ranking in Application Infrastructure
2nd
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 June 2025, in the Application Infrastructure category, the mindshare of IIS is 11.5%, down from 13.3% compared to the previous year. The mindshare of Microsoft .NET Framework is 6.1%, down from 6.8% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure
 

Featured Reviews

DanielWildermuth - PeerSpot reviewer
Provides integration with Eggplant but problems with stability
We use Windows Server only for Eggplant Manager. Otherwise, I'm not using it   At the moment, we have big problems with stability, and I'm not very happy at the moment. So, the stability could be improved. I have been using it for a few years.  The initial setup is complex.  We have an…
Alberto Carioni - PeerSpot reviewer
Integration with advanced tools improves development speed and efficiency
I use Azure DevOps because we have everything implemented in .NET by Microsoft, and we are integrated with the collection of the requirements, the .NET pipeline, and directing Azure DevOps for Azure Plus. I am more of a developer, so from an infrastructure point of view, I do not have feedback or…

Quotes from Members

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

Pros

"The solution has been reliable."
"IIS works natively with Windows Server without any issues in publishing certificates."
"The solution is very stable. The solution is very simple and easy to use."
"It helps scan and mitigates our vulnerabilities using the best protocols to secure our environment."
"It has an intuitive user interface and provides a lot of options for building reports."
"IIS is quite easy to set up as it comes pre-configured, so I don't have to install anything."
"We use the solution for our customer's web applications."
"The solution is easy to use and connects with Microsoft."
"When we talk about .NET development, we use Visual Studio IDE to create these things. In recent years, there have been a lot of improvements in Visual Studio 2022. It would be a daunting task to list all of the features that have benefited us, as it would require a lot of time and effort. However, there are definitely many improvements year after year in .NET development."
"The most valuable feature is the financial accounting."
"The solution is easy to use if the user is a developer or some technical person."
"The most valuable feature of Microsoft .NET Framework is debugging."
"The technology is very scalable and accessible to use."
"When it comes to the user interface, the context is better than other tools because it is easier to use."
"The most valuable thing about Microsoft .NET Framework is that it is an enterprise-grade language and platform."
"If we take low code, no code platform such as RPA platforms, you might end up writing 100 lines of code and you might do it in a single line of code using. NET."
 

Cons

"The platform's stability could be better."
"Sometimes, we encounter difficult issues, and getting support from Microsoft to resolve those issues is not easy."
"The only issue I've encountered is with certificates not working fine sometimes."
"IIS needs to improve its security. Its support needs to be faster and clear. The tool's licensing could be cheaper as well."
"The solution's pricing and stability need improvement."
"The documentation isn't very good and the options are very complex."
"The only issue I've encountered is with certificates not working fine sometimes. It's influenced by the server's service performance."
"We'd like future versions to be more stable."
"There may be some topics regarding connectivity and management of certificates that require attention."
"Improvements are needed in .NET development, particularly in a backend scenario."
"The cloud features must be improved."
"The integration could improve in Microsoft .NET Framework."
"Difficult to scale this product for large organizations."
"I would want the product to be integrated with the different AI tools in the future since it is one of the areas where the product has certain shortcomings."
"They do provide the .NET library, however, for me, the most important capability we want to investigate in the future is the integration with Copilot. This would help speed up the development of the code and also the testing and documentation of the requirement."
"The integration capability of the product with AI is an area with certain shortcomings, where improvements are required."
 

Pricing and Cost Advice

"We pay a yearly licensing fee for the solution."
"This solution comes included with Windows Server."
"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."
"I give the price of the solution a five out of ten."
"There is no license needed to use the solution."
"The cost for IIS is already included in Windows services. We don't have to pay anything extra."
"The price of the cloud system is a bit high."
"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."
"I rate the solution's pricing a two out of ten because .NET is an open-source framework. You don't have to pay for a license."
"The solution is free but you need to pay for a license for the hosting service."
"Do your homework. Consider the partnership program."
"The support is an extra cost when purchasing the license. The price of the solution is overall reasonable and paid annually or every three years. Additionally, they have a monthly license. The cost is approximately $1,000 per user."
"Microsoft .NET Framework is a free, open-source solution."
"The product’s pricing is a bit high."
"The product and support for this solution are free for everyone."
"The pricing could be cheaper."
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Top Industries

By visitors reading reviews
Computer Software Company
17%
Financial Services Firm
15%
Manufacturing Company
8%
Government
8%
Real Estate/Law Firm
12%
Construction Company
11%
Computer Software Company
11%
Financial Services Firm
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: June 2025.
856,873 professionals have used our research since 2012.