Owin Middleware results in 404 on server
.net, c#, iis-7, owin
Solution
A few common reasons for a OWIN middleware not working as expected in IIS integrated pipeline.
- Check if you have Microsoft.Owin.Host.SystemWeb nuget package installed in your project and its in the bin folder of your app.
- Is your app pool a v4.0 Integrated mode one (most probably this one?)
This article can be of help. Also this question I believe is similar to yours.
Problem
I have a owin middle ware it works on my IIS7 on my dev machine (win7). But when deployed to a 2008 server the page returns 404 I hook up the middleware like this ``` public static class AppBuilderExtensions { public static void InitTemplateStore(this IAppBuilder app, string templatePath, string fileMask) { TemplateStoreMiddleware.Init(templatePath, fileMask); app.Map("/templates", subApp => subApp.Use<TemplateStoreMiddleware>()); } } ``` The code that uses the middleware can be found here https://github.com/AndersMalmgren/Knockout.Bootstrap.Demo The site is hosted as an virtual app under the default web site on IIS edit: Do I need to add any roles out of the default ones? IIS is tring to use the StaticFile handler which offcourse is wrong, why is this happening? ``` Module IIS Web Core Notification MapRequestHandler Handler StaticFile Error Code 0x80070002 Requested URL http://localhost:80/knockout.bootstrap.demo/templates?root=shared Physical Path C:\inetpub\knockout.bootstrap.demo\templates Logon Method Anonymous Logon User Anonymous ```