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)
   
   
7. Upload the new files in your bin/Release/.../publish folder to the server.