Meaning of ATI2EVXX in English
ATI External Event Utility EXE Module. Another background task which gets installed when you install ATI display drivers. Under Windows NT4/2000/XP the service registers as the "ATI Hotkey Poller" and further investigation shows that it is related to the handling of various ATI Hotkeys which bring up specific ATI utilities. Not only is this facility useless to 99.99% of users, but there is also no documentation anywhere on those ATI hotkeys !! Additionally some of our more inquisitive users have been able to prove that ATI2EVXX can sometimes be an incredible resource hog using up to 85% of CPU utilization !! Older versions of this background task show up as ATIPOLAB in the Task List.
Disable with Startup Manager, definitely
Microsoft Windows task list Programs English glossary. Английский словарь - Список целевых программ Microsoft Windows. 2012