This file is a harmful and undesirable program. Probably virus. It's recommended to delete it.
What is dec25.exe Windows startup process
File name: dec25.exe
Program name: run=
Description: ATAK.F WORM
Information added by: kadar at 01 August 2008
Hint: If dec25.exe file is a virus or trojan, we recommend to use a antivirus software or registry cleaner.
We are presenting list of Windows processes, startup files.
Name of dec25.exe is run=. Some of them are viruses, so you should use a antivirus program.