As a dev team, we're looking to switch to asp.net MVC and I've heard rumors about IIS 6 not being able to support all of the MVC functionality. Is this true? Is there any official set of functionality supported in IIS 7 vs IIS 6? Should we completely avoid running it on IIS6?
You do not loose any functionality of ASP.Net MVC; however, you have one of two options. You can either define an extension on your URL's which will allow you to set up mapping. So for example:
www.example.com/books/computer/list
might become:
www.example.com/books.mvc/computer/list
You can use any extension you want so long as you map to ASP.Net. I am currently using .aspx which meant I could avoid changing IIS configuration at the sacrifice of having extensionless URLs.
The other option as mentioned is using a wild card mapping. What this does is route all requests to ASP.Net. Even requests for static content such as images. This does have a negative effect on performance that you will want to measure. There are ways around this, I believe such as placing all your content in a specific virtual directory that you turn off the wild card mapping for, but I haven't fully explored that option.
I think the issue with IIS6 is extensionless URLs that you can easily achieve by adding a wildcard ISAPI map in IIS configuration.
So, no. While I love IIS7 integrated mode and strongly recommend using it, you won't lose functionality using it. I've deployed several ASP.NET MVC 1.0 projects on Windows Server 2003/IIS6.
Url rewriting can help you to solve the problem. I've implemented solution allowing to deploy MVC application at any IIS version even when virtual hosting is used. http://www.codeproject.com/KB/aspnet/iis-aspnet-url-rewriting.aspx
来源：https://stackoverflow.com/questions/752830/do-you-lose-functionality-when-hosting-asp-net-mvc-on-iis-6-if-so-what