How to lock a file completely from being read

[redbull]

In the old days (of DOS and up to win 9x) you could prevent a file from moving by giving it ReadOnly, Hidden and System attrributes.

Under win2k and xp try giving the file hidden and readonly attributes and see if that makes any difference.

Otherwise defrag tools like Norton Speed Disk allow exclusion lists.

No, read-only, hidden or system attributes set doesn't make any difference.The only thing which needs to be done to defragment a file is to open the file for reading. Most programms don't even care any more about the attributes

Our defragmentation programm allows exclusions, but only company-wide and I'm not allowed to edit the exclusion list since I'm only Admin on one server and not company-wide.