Hello,
You can secure you directory easy. And no one including administrtors could not see or your files.
This is Windows included function. But here exists one thing that you should to know. Only administrators, have privilgey to view your files in recovering process. But, thery must have special privilegy in such cases, and if they do so, you will can see that they done it.
So it is one of Windows NT/2000/XP/2003 basic function. It can not be done on Win 95/97/98/ME
Other solution is to develop or buy program for encripting data. But it is slower and harder to use, that this Windows native function.
Regrads
M (Microsoft Certified Systems Engineer 2000/2003)