Just go to c:\windows\system32 and you should see them. You may have to enable showing of hidden files:
1. Click Start.
2. Click My Computer.
3. Select the Tools menu and click Folder Options.
4. Select the View Tab.
5. Under the Hidden files and folders heading select Show hidden files and folders.
6. Click Yes to confirm.
7. Uncheck the Hide file extensions for known file types.
8. Click OK.