Need help with netstat command

There is no uninstall, because it hasn't installed anything

All that fixit did when you ran it, is did an automatic check & repair on the Winsock 2 keys. It would have then exited and until you run the fixit again won't do anything

That particular fixit & many others are just plain simple compressed .exe files that when run will extract a set of files to your temp folder, run the commands & then delete the files from the temp folder