The IAA event monitor service is installed by the Intel Application Accelerator, which is an optional component that can be installed on computers with Intel processors that is supposed to increase performance. I would recommend you leave this set to automatic. If you do not want it then uninstall the IAA.
Please visit /tools/services/ for the complete Vernalex.com Services utility.
"Whether you think that you can, or that you can't, you are usually right." --Henry Ford (1863-1947)