>>1-Suppose i am starting for zero,how do i know the functions encapsuled in that DLL and their parameters to declare each function as well.

>>.
>>Note:(i remember a dependencies programm...to do (1)-i am note sure).
>
>I'm not sure this is the one, (I think it was Process Explorer) but I just googled by Mark Russinovich and found
>https://technet.microsoft.com/en-us/sysinternals/bb545021.aspx?f=255&MSPPError=-2147217396

I guess Yousfi is talking about dependency walker
https://technet.microsoft.com/en-us/library/cc738370%28v=ws.10%29.aspx
there must be a very interesting use case when
- there is no doc on the dll in question,
- no example in another language
- and a need to hook it in vfp at this day and age

;-)