If I want to use WinSock 2, what should I use in the Unit clause ?

I found one from JEDI :

ftp://delphi-jedi.org/api/Winsock2.zip

But it said that this unit is "Complete translation, untested"

I am a little bit worried with the UNTESTED comment here.

Anyone can show me some light about using WinSock 2 in Delphi 7 ?

Thank you.