The MSN tech probably made the hidden system files visible so she could troubleshoot, but forgot to hide them again. Windows normally hides them.
It's normal for system.ini files to be there, but they're usually hidden. You may want to hide them again.
If you have XP, here's how to hide them
- Click 'Start'.
- Open 'My Computer'.
- Select 'Tools' menu
- Click 'Folder Options'
- Select the 'View' Tab.
- Uncheck 'Show hidden files and folders' in the Hidden files and folders section.
- Select 'Hide protected operating system files (recommended)' option.
- OK your changes.
If you have Windows 7, you can find "Folder Options" in Control Panel.