hi i installed centova cast 3 with icecast then uninstalled it and installed with shoutcast i was trying both
then i uninstalled it and trying to install it again with icecast * i prefer opensource
but i got error with icecast and i found that icecast still installed so how to uninstall it ?

I tried for 2 days to make it clean. I had to uninstall everything to come back and reinstall Centova with only the shoutcast and SC2trans switches. I would suspect they wouldn't want to disconnect the services installed at the same time, otherwise people would break it, and they'd have more issues.