Galhano //127.0.0.1

Simple, but a little hidden:

1. Open IIS
2. Click on “Application Pools” :
3. In the side panel (right) click on “Website” you want to change the framework:
4. Sidebar, locate the “Edit Application Pool” and then click Basic Settings
5. Clicking on “Basic Settings …” will appear the following selection screen FrameWork:
6. Now, select the framework of your choice by clicking on the list. NET Framework Version:
7. Once selected click “OK”