When Hardware BP fail's ?

[ahmadmansoor]

Hi guys :
through my work in dll injection I found something strange .
when I use Hardware-BP on my PC on my ( all OS from xp till win8.1)
it work fine without any problem .
when I send this file to another PC's ( friend PC from other Country ) .
maybe this PC's have different in :
- OS lang (non English or multi lan OS ( Arabic + Englsih ).
- Hardware : CPU is different ( AMD maybe ) or intel with different speed or core- or less memory .
the Hardware BP could not reach ( or not happen ) .
so any one have any IDea's what could be happen here ?
Thanks