Moving from MVC 3 to MVC 4 read on. There are a number of references that need updating as well as update to the web.config(s). [More]

Scenario: I deployed my mvc 3 application to IIS 6 (with NTLM authentication). While using Internet Explorer (IE) everything looked great. When I tested the site with other common browsers Chrome/FireFox/Safari none of the styles specified in the css sheet were used [More]

Are you running in IIS7 integrated mode? Classic mode of IIS7 does not automatically map extensionless URLs to ASP.NET (much like IIS6). Also make sure your Web.config <system.webServer> tag is configured correctly. i.e. <system.webServer>    <validation validateIntegratedModeConfiguration="false"/>    <modules runAllManagedModulesForAllRequests="true"/></system.webServer>   On my workstation windows 7, 64 bit I had set my app pool to classic and added a "Wildcard Script Map" to C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll (32bit dll). The end result was my web.confi webServer section looked like   <system.webServer>    <validation validateIntegratedModeConfiguration="false" />    <modules runAllManagedModulesForAllRequests="true" />        <handlers>            <add name="_wildcard 32" path="*" verb="*" modules="IsapiModule" scriptProcessor="C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" resourceType="Unspecified" requireAccess="None" preCondition="classicMode,runtimeVersionv4.0,bitness32" />        </handlers>  </system.webServer>