How to boot ISO-image via SMB/CIFS

[NiKiZe]

Please try to read the FAQ that I refer to!
Yes I'm sure, what makes you think that it is implemented and I'm being wrong?

Well booting grub2 won't help you since the ISO won't be available anyway.
If it is winpe environments that you want to boot, than you will end up using wimboot for a working environment. see http://ipxe.org/wimboot

Many before you have gone and banged their head against the "booting an ISO" path, I'm just trying to tell you the right path and save you time