"IAdHide.dll" belongs to
BackWeb. It is installed with the software for e.g. Logitech products. It checks for software upgrades from Logitech.
It's present under
Software => Logitech Desktop Manager, where it can be uninstalled.
See also
http://www.backweb.com/news/html/rellogitech.html.
The files
backweb-8876480.exe, IAdHide3.dll and tempiadhide3.dll are also part of BackWeb.
Backweb, suggest they only monitor keyboard / mouse activity, so they know when the computer is inactive, they claim they don't record key strokes. (
source)
Note: Any malware can be named anything - so you should check where the files of the running processes are located on your disk. If a "non-Microsoft" .exe file is located in the C:\Windows or C:\Windows\System32 folder, then there is a high risk for a virus, spyware, trojan or worm infection! Check it out! Use a program like
CCleaner