You can view or change your ASP.NET version on our Windows-based hosting accounts.
Plesk lets you change the ASP.NET settings on a per-domain basis. This means you have to update the settings for each domain on your account if you don't want to use Plesk's default.
In the Web Scripting and Statistics section, your Microsoft ASP.NET support version displays.
If you want to change it, select a new version, and then click OK.