ASP.NET Core: How to Publish Your Site as "Self-Contained"

If your website uses an legacy version of .NET Core listed below, you must switch to a "Self-Contained" deployment to ensure it keeps running after April 2026 when we update our shared hosting server security.

If you need to republish your legacy application as "Self-Contained" the intrusions below describe how to do this in Visual Studio.

Using Visual Studio

1. Right-click your project in the Solution Explorer and select Publish.
   
   
2. Click on the Settings (pencil icon or "Show all settings") in your Publish Profile
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3. Find the Deployment Mode drop down and change it from Framework-dependent to Self-contained.
   
   
4. In Target Runtime, select win-x86 if using default 32-bit pp pool, or win-x64 if using a 64-bit app pool, see; Change Application Pool Mode (32-bit & 64-bit).
   
   
5. (Optional) Check Produce single file if you want to keep your folder clean.
   
   
6. Click Save and then Publish again (Publish with Visual Studio)