Hi!
Typical! It seems that it is the configuration file that must be deleted. In ProgramData you have a folder for webcam. When you have uninstalled the program you have some files left there. Remove that folder. Also in ProgramrFiles or ProgramFiles x86 there is a folder for Webcam. It that is still there remove it. Install webcamxp again and start over.
When you add the camera in the source filter which URL do you use? I have two different ones here. I am not sure which one works.
rtsp://username:password@xxx.xxx.xxx.xxx:554/Streaming/Channels/101
rtsp://username:password@xxx.xxx.xxx.xxx:554/video.h264
Good luck,
Henrik
