How to Change the Version of ASP.net in Plesk
1) Sign in to Plesk
2) Search for the domain in the search box at the top right:
[image source="http://hostdime.com/resources/wp-content/uploads/Plesk-Search.png " hovertext=" "]
3) Click on “Websites and Domains” at the top
[image source="http://hostdime.com/resources/wp-content/uploads/Plesk-Website.png " hovertext=" "]
4) Click on “Advanced Operations”
[image source="http://hostdime.com/resources/wp-content/uploads/Plesk-Advance.png " hovertext=" "]
5) Click on “Website Scripting and Security”
[image source="http://hostdime.com/resources/wp-content/uploads/Plesk-ASP.png " hovertext=" "]
6) Change the version in the drop down for ASP .net support.
[image source="http://hostdime.com/resources/wp-content/uploads/Plesk-ASP-version1.png " hovertext=" "]