>Should I also register this DLLS or also copy tem into sys directory
>is enough ?
No registration. Just copy them wherever your EXE can find them: for example, into c:\windows, c:\windows\system, or the folder where the EXE is located.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)