dlder.exe - An advertising trojan that is installed by Grokster (1.33), Bearshare (2.4.0b7), LimeWire (2.02), Net2Phone (unspecified versions) and KaZaA (unspecified versions). The spyware itself comes from ClickTillUWin.com. Taking the torch from even the worst advertising spyware to date, this one creates a fake Explorer executable and process to hide its activities. More information here. Some antivirus manufacturers have listed this as a virus or trojan horse: TROJ_DLDER.A.
ADP.EXE - Another spyware, distributed with LimeWire(?) and others. Appears to be an installer of Bargain Buddy (below).
BARGAINS.EXE (Bargain Buddy) - Advertising spyware installed with Net2Phone and some versions of LimeWire. Appears related to ADP.EXE above. More info at and.doxdesk.com.