How to Choose the ASP.NET Version for a Website in Plesk

What is ASP.NET?

ASP.NET is a Microsoft tool for building websites and web apps. Like apps on a phone, it comes in versions. Your site must run on the version it was built for. If the version is wrong, the site may show errors.

Plesk is a control panel, a web page for managing hosting. ASP.NET settings are only available on Windows hosting. They do not appear on Linux servers.

Changing the version can break your site. Take a backup first.

Steps

1. Log in to Plesk.
2. Click Websites & Domains.

   

3. Find your domain and click ASP.NET Settings.

   

4. Look at the ASP.NET version list. Pick the version your site needs. Common choices are 2.0, 4.x and so on. The list depends on what is installed on your server.
5. Check any other settings you need, such as the Custom errors mode or the Application pool setting. Leave them alone if you are unsure.
6. Click OK or Apply.
7. Visit your website and test it.

If the version you need is missing

1. That version may not be installed on the server.
2. On a VPS or dedicated server, you may add it through Windows or the Plesk installer.
3. On other plans, open a support ticket and ask for it.

Which version do I need?

• Ask the developer who built the site.
• Look in the web.config file for a line like targetFramework.
• Check the app's own notes.

Quick recap

• ASP.NET is a Microsoft web tool with different versions.

  

• Go to Websites & Domains, then ASP.NET Settings.

  

  

  

• Choose the version your site needs and apply.
• Test the site afterwards.