Securely deleting files

[CoR]

I had little day dream about your "Magnetic Hysteresis".
I do not if it will make any difference or not but how about using NOT for the first time. Bare with me:

mov var, File data,
not var
write [File data], var

Basically rewrite file with it's negative and after that use write 1111, 0000 or some RND.


Pardon in advance if this idea already exist.

[ecube]

MASM version of sysinternals SDelete program this also has a fantastic GUI
http://www.geocities.com/asmsoft3264/src/SecureDeleteSrc12.zip