This file is a harmful and undesirable program. Probably virus. It's recommended to delete it.
What is fmsz.exe Windows startup process
File name: fmsz.exe
Program name: FMSZ
Description: FMSZ TROJAN
Information added by: mitarashi at 26 March 2008
Hint: If fmsz.exe file is a virus or trojan, we recommend to use a antivirus software or registry cleaner.