WCF on IIS8; *.svc handler mapping doesn"t work

📢🔧🏗️

*WCF on IIS8: Troubleshooting .svc Handler Mapping Issues

Are you having trouble setting up a WCF service on IIS8? Don't worry, you're not alone! Many users encounter issues with the *.svc handler mapping not working properly. In this blog post, we'll explore common problems and provide easy solutions to get your WCF service up and running smoothly on IIS8. Let's dive in! 💪

Issue 1: WCF missing in Windows Server 2012 When you installed the web role, you noticed that the WCF stuff (under 3.51) was missing, unlike in Windows Server 2008. This can be frustrating, but don't fret! We have a straightforward solution for you.

Solution: Installing the WCF Components To resolve this issue, you'll need to manually install the WCF components. Follow these steps:

1. Open the command prompt as an administrator.

2. Execute the following command:

   %windir%\Microsoft.NET\Framework\v3.0\WindowsCommunication Foundation\ServiceModelReg.exe –i

   👆This command will install the missing WCF components and make them available for use.

Issue 2: Handler Mapping Not Found Even after installing the WCF components, you may still encounter the error message "The resource you are looking for does not have a handler associated with it." This problem typically occurs when the svc handler mapping is missing.

Solution: Adding the Svc Handler Mapping To fix this issue, follow these steps:

1. Open IIS Manager.

2. Locate your website/application in the "Connections" pane.

3. Double-click on "Handler Mappings."

4. In the right-hand pane, click on "Add Module Mapping."

   📝 Tip: If you already have a previous mapping for svc, you may need to delete it before adding a new one.

5. In the "Add Module Mapping" dialog, fill in the following details:

   • Request Path: *.svc

   • Module: ServiceModel-Integrated

   • Executable: %windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll

   • Name: svc-ISAPI-4.0_32bit (or any name you prefer)

6. Click "OK" to add the handler mapping.

Issue 3: Classic Pipeline Configuration If your website/application is using the classic pipeline to enable impersonation, you'll need to make an additional configuration change to ensure everything works smoothly.

Solution: Enabling Classic Pipeline Impersonation To enable impersonation in the classic pipeline, follow these steps:

1. Open IIS Manager.

2. Locate your website/application in the "Connections" pane.

3. Double-click on "Authentication."

4. Select "ASP.NET Impersonation" and click on "Enable" in the right-hand pane.

   📝 Note: Make sure you have the necessary permissions and security measures in place before enabling impersonation.

Call-to-Action: Share Your Experience! We hope the solutions provided here help you overcome the *.svc handler mapping issues on IIS8. If you found this blog post useful, don't keep it to yourself! Share it with others who might be experiencing similar problems. Let's build a supportive tech community together! 🚀

Have you encountered any other challenges when working with WCF on IIS8? We'd love to hear about your experiences and help you find solutions. Leave a comment below and let's start a conversation! 💬

Stay tuned for more tech tips and solutions on our blog. Happy coding! 🎉