I ran Etre Check and it apparently found traces of applications I had installed several months ago as demoes, which I had deleted.

I did a thorough search with EasyFind with all options checked, but still couldn't find the files Etre Check refers to. Under "User Login Items," EtreCheck, where "application" should be, returns the words "unknown (missing value)" for NetShredX, USBOverdriveHelper, and WDDriverUtilityHelper. To give an idea of what's supposed to appear in this column, itunes Helper appears as "Application" along with its hard drive pathway.

Any idea what this means?