This file is a harmful and undesirable program. Probably virus. It's recommended to delete it.
What is zmon.exe Windows startup process
File name: zmon.exe
Program name: Z
Description: W32/Delbot-AE worm.
Information added by: nametaken at 19 June 2008
Hint: If zmon.exe file is a virus or trojan, we recommend to use a antivirus software or registry cleaner.