file security

Does anyone know how to allow a program to have write access to a file, but
not the user who is running the program. This is to ensure that the user does
not mess with the file. Thanks for the help.

[AndyK]

Well these are really slick but why not making a file read-only and hidden

[Starcraft]

hey, you can also do this:
open "c:\whatever\whatever.dat" for output as #1
write #1, text1
close #1
' hope this helps

[Lonely Wolf]

What do you mean with "the user who's running the program cannot acces the file"?
Do You have to hide and protect your file while the program is not runnin'?
Please be more specific so WE can post, thanx