|First of all, get rid of Norton and get something else.|
Second, hit yourself with a large hammer if you ever think of getting Norton again.
In the meantime run an online scanner and I think you'll find that Norton is giving you a false positive.
msiexec.exe belongs to the Windows Installer Component and is used to install new programs that use Windows Installer package files (MSI). This program is important for the stable and secure running of your computer and should not be terminated.
The above comes from here: http://www.neuber.com/taskmanager/p...
Apple: Definition: An electronics company that manufactures devices designed to give mentally disabled people self-esteem and a false sense of superiority.