Hi,
a customer had the problem that he disables the IIS service (w3svc) but Windows still listens at port 443.
D:\> sc query w3svc
SERVICE_NAME: w3svc
TYPE : 20 WIN32_SHARE_PROCESS
STATE : 1 STOPPED
D:\> netstat -an|findstr /i 443
TCP 0.0.0.0:443 0.0.0.0:0 LISTENING
Continue reading Windows: IIS is disabled but Windows still listen at Port 80/443