Use Form Templates of InfoPath Forms Services in SharePoint 2010 Web Application

how to develop and deploy Form Templates for InfoPath Forms Services inside PS 2010 and applying some code behind using PSI to get Projects List as example. let's start :)
1- follow this article to develop and deploy your InfoPath Form (with code behind or not)
2- After you deploy your InfoPath form, you should see this screen form Central Administration -> General Application Settings -> Manage Form Templates
(then install it and you can enable it from your Site Collection Features as well)

3- So, you need to create new Form Library that will use InfoPath Form Template:

4- From Library Settings, Advanced Settings, Set Allow management of content types equal True

5- then add your Forms Services to form content and make it the default - Add Content Type and select your InfoPath Form Template:

6- Finally, you have a form library of content InfoPath Forms Services: