Camera not listed - what to do?

New cameras support the ONVIF standard which makes it much easier to connect to a camera with Netcam Studio and similar software.
When adding the cameras to Netcam Studio go to the tab for ONVIF Source. Click on Browse. The camera should be in the listing. Mark the camera and save. Add user and password and click on Get profiles. There should be several profiles to choose from.
If the camera do not show up in the listing login to the cameras web interface and make sure that ONVIF is enabled.
If you want to fine-tune the settings you can also do that when logged in to the camera. If you change something there you should add the camera again.

The listed cameras are quite old and do not support ONVIF, but are stil used.