Windows NT hidden and system files are not displayed by Explorer or My Computer by default. To display all filename extensions and hidden files, in Windows Explorer:
Choose View then Options
Click the View tab in the Options dialog box
Select Show All Files
this will show you all files
Deselect the option Hide File Extensions for Known Files
this will show the file extensions for all files
Click OK and close the Options dialog box
If this is not done, you will not see dll and ini files listed as well as the hidden system files in the root. This should work for Windows NT and Win9x.