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IIS vs Windows Process Activation Services comparison

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Comparison Buyer's Guide

Executive Summary

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
8.2
Reviews Sentiment
6.7
Number of Reviews
61
Ranking in other categories
Application Server (4th)
Windows Process Activation ...
Ranking in Application Infrastructure
26th
Average Rating
4.0
Reviews Sentiment
2.8
Number of Reviews
1
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of November 2026, in the Application Infrastructure category, the mindshare of IIS is 6.1%, down from 10.1% compared to the previous year. The mindshare of Windows Process Activation Services is 1.4%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Infrastructure Mindshare Distribution
ProductMindshare (%)
IIS6.1%
Windows Process Activation Services1.4%
Other92.5%
Application Infrastructure
 

Featured Reviews

Frederic Hautecoeur - PeerSpot reviewer
Senior System Integrations Architect at bs-team
Integrated web hosting has simplified secure services and has supported long-term growth
To be honest, I do not see any major areas for improvement. Perhaps something simple and minor. It should not go more complex than it is at the moment. The only disadvantage I see is that the documentation is a bit difficult to find. There is a lot of configuration that is very hard to get information about.
it_user1226547 - PeerSpot reviewer
Senior IT Systems Administrator at a energy/utilities company with 501-1,000 employees
Central console enables us to see all of the activated and deactivated computers but it has poor alerts and frustrating technical support
The solution needs to allow for other company product licenses to be included if possible. The solution needs to include other Microsoft products, like Exchange, SharePoint, etc. Right now, it's only for Windows and Office. The solution needs to be made web-based. Right now, we have to install some tools and to use these tools we have to log into a specific server. If that server has an issue we cannot manage it. The solution needs to be able to be managed from any machine. Alerting capabilities should be improved. If a license expires or there is a breach, or something is non-compliant, the solution should send out alerts.

Quotes from Members

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

Pros

"IIS works natively with Windows Server without any issues in publishing certificates."
"It's good and offers good usability."
"The product is flexible."
"IIS is a stable solution for .NET applications."
"IIS is Internet Information Services, which is application infrastructure, and the main benefits include security control where you can control different access levels and integrate with other services to manage application security."
"IIS is useful for the deployment of web applications...Its stability is good."
"All the features of Microsoft IIS are valuable."
"The product's initial setup phase is straightforward."
"The most valuable aspect of the solution is the central console, that allows you to see all of the activated and deactivated computers."
 

Cons

"The solution's stability needs improvement."
"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 needs to improve its security. Its support needs to be faster and clear. The tool's licensing could be cheaper as well."
"There is an issue with the network. The tool's price is also high."
"IIS could improve by Microsoft Windows improving the update services. We would like to be able to update all systems that are connected. The WSA service has to be in good order to accomplish this."
"I would like to see NLB features in IIS."
"Finding different settings can be difficult if you don't know where to look."
"Sometimes if you are using IIS in large-scale scenarios, meaning that if you are deploying an application within IIS service and you are expecting a large number of users to use this application, you can sometimes find some problems, meaning that the service can shut down by itself unexpectedly if you don't configure your IIS with the correct configuration that can handle this number of users."
"The stability of the solution needs improvement."
"The solution is kind of a necessary evil for us."
 

Pricing and Cost Advice

"There is an annual license to use this solution and the price could be better."
"This solution comes included with Windows Server."
"IIS's pricing is not expensive."
"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."
"I give the price of the solution a five out of ten."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
13%
Manufacturing Company
11%
Construction Company
9%
Comms Service Provider
9%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business30
Midsize Enterprise12
Large Enterprise22
No data available
 

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?
For the pricing, setup cost, and licensing for IIS, as a Microsoft product, I didn't think much about separately purchasing an IIS product as it is part of Microsoft Windows. We bought a developmen...
What needs improvement with IIS?
I see that IIS has maintained the same interface for a long time, so they could potentially use more automation or integrate Copilot into it to make it easier to use. I have not accessed or checked...
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Also Known As

Windows Server IIS
No data available
 

Overview

 

Sample Customers

Erste Bank Group, NJVC, Samsung Electronics, Sheraton Hotels and Resorts, Tata Steel Europe, Urban Software Institute
Bank Alfalah Ltd., Harris Farm Markets, The University of Texas at San Antonio (UTSA), Basingstoke and Deane Borough Council, John Keells Holdings, Green Prefab, 343 Industries, SM Prime, Delhi Integrated Multi-Modal Transit System Ltd.
Find out what your peers are saying about Microsoft, F5, Red Hat and others in Application Infrastructure. Updated: October 2026.
920,769 professionals have used our research since 2012.