How do i read the temporary internet files programatically?

from IE. i can open the ..\AppData\Local\Microsoft\Windows\Temporary Internet Files\ folder to view them but programmatically i cannot see any files in the folder using
Directory.GetFiles()

why is this?

i want to delete specific files from there programmatically but getfiles only return a few if any files.

i tried this as well but no nothing works:

http://stackoverflow.com/questions/6521148/c-sharp-how-to-delete-temporary-internet-files