Applications or Processes, if it,s under the Processes Tab, simlpy click the USER NAME header once to sort the items into catagory, your shold now be all at the top of the listing, i.e. items tha you are running, firewall and antivirus/spyware ect, browser, explorer and of course Task manager.
This shold be followed by:
LOCAL SERVICES
NETWORK SERVICES
SYSTEM.
To ID any process currently running in your task manager listings goto this site:
http://www.processlibrary.com/
Enter the name of the .exe as listed into the search box and you will get back a detailed page of information on the item, if you can or should remove it, how to fix it it's broken and a host of other tools on the top half of the page alone, below that a full library of all current .exe that can be found in the process listing.