Step 3: Add the barcode library as a reference

Right-click on the Solution Explorer, select Add Reference and use the Browse panel to enter the location of the barcode library called BarcodeLib.Barcode.dll:


Screenshot after adding Barcodelib.Barcode.dll as reference

By default, the barcode library will be copied to the right place when deploying on the IIS web server.

In the next step we add the buildImage method, Step 4: Add the buildImage method.