hex editor take learning or is it simple?
Simple when you know what your doing. Easy to break the files otherwise. For me it was extremely easy to pick up for others it is more difficult. Download a Hex editor and look at any exe file to get a feel for it.
Mostly it's a matter of searching for the Chinese String and changing to English. Chinese Characters take up 2 ASCII Spaces and you cannot overwrite things that aren't Strings without breaking the client. Strings also contain a length at the beginning that can be adjusted sometimes
So an example using a 4 Letter Chinese word which would be 8 English Characters.
'0800000000HEHEHEHEHEHEHEHE00000000' -In Hex (HEHEHE being what I done would be different for the proper string obviously length is right though)
'....在内功生....' Would look like that in ASCII
So to make that english you would do
'....MakeEngl....' 8 Characters being the limit set at the start of the string. Now since you have 4 blank spaces after the end of this string you can increase the size.
'0B00000000HEHEHEHEHEHEHEHEHEHEHE00' 0B is 11 in Hex (0-9 A-F)
'....MakeEnglish.' Is the new increased string.
You are limited by the space after the string sometimes it can be quite large other times it is tiny.
Forspinki yes they are hardware bound. You get 3 Reg Keys for 3 Computers for the 280 rmb price.