Returnil and Eraser

Not sure if this is the right forum for this question.

If Returnil is enabled, are 3 (or 7 or 35) passes actually needed?

I mean: with returnil enabled, I download a file, and then decide to delete it. Would the multi-pass erasing be undone by returnil when I reboot my PC? Would it be better just to normally delete it or just leave it there so that Returnil deletes it upon reboot?

 

I think it would depend on whether you are using disc cache or memory. If you are using it in memory mode then all traces would be gone with a reboot as nothing actually gets written to the disc. I am not certain what happens if you have disc cache enabled.

 

Returnil write to the disc also in memory cache (it hooks kernel objects)

 

Hadn't seen this question before, but I'd be interested to see what Coldmoon has to say on this as I have often wondered.
If you have a file on your computer already, and you enable Returnil and Erase said file, when you reboot said file will still be there as Returnil has prevented the erase, possibly by intercepting the erase and sending it to empty space. But, if you create a file in a Returnil session, it will of course not be there on reboot, so in this case will Returnil allow it to be erased, ie does Returnil only act when a file is targeted that should be protected, or does it simply always interupt the erasing process regardless if the target file should be protected or not.