Running the terminal pluginkit -m produces the following output (non-essential lines are skipped):
+ com.apple.ncplugin.weather(1.0) - com.apple.share.SinaWeibo.post(1.0) H. com.apple.InternalFiltersXPC(2.0) com.apple.ncplugin.FindMyFriends(1.0) ! com.mycompany.MyDemoPlugIn(1.0)
There is a question https://stackoverflow.com/a/166952/126952/ ... with the answer about the + and - prefixes.
+ com.mycompany.finderExt(1) - If the extension is enabled - com.mycompany.finderExt(1) - If the extension is not enabled
But what a sign of exclamation ! and the strange prefix H. mean?
What does it mean when there is no prefix?
Thanks!
source share