well, obviously it's lockdown related. checkrevision comes from within the lockdown library, and therefor would have to relate to lockdown in some way. this is just a non-completed conversion to C (and a lot of inline assembler). it's not meant to solve anything as is, but is meant to possibly help anyone looking to work on it for themselves. i posted it because i had been getting PM's from various people asking questions about checkrevision. and the before it's gone refers to the fact that it's no longer on my computer at all, and only exists on my ftp - which i will delete it off of sooner or later, i'm sure.