I have installed the Active Webcam program on my PC but it can’t find my WiFi camera. Any ideas please?
Make sure you can access your WiFi Camera via it's web interface (or whatever the camera/manual offers as options).
If the camera is working properly make sure it is supported by Active Webcam.
* Sorry, it actually is a list of tested webcams so your camera doesn't have to be on that list, but the following applies
The Active Webcam FAQ also states the camera has to support Video for Windows.
If everything is in order and the camera meets these requirements I suggest to contact the official support.