Problem z rejestrem i błędami wyskakujacymi!!

Po wpisaniu po buttona:
<font color="blue">var
Reg : TRegistry;
begin
Reg := TRegistry.Create;
try
Reg.DeleteKey('HKEY_LOCAL_MACHINESoftwareKaZaA'); // wykasowanie klucza
finally
Reg.Free;
end;
end;
</span> wyświetla mi serie błedów typu:

<font color="red">[Error] Unit1.pas(27): Undeclared identifier: 'TRegistry'
[Error] Unit1.pas(29): Missing operator or semicolon
[Error] Unit1.pas(31): Missing operator or semicolon
[Error] Unit1.pas(35): Missing operator or semicolon
[Error] Unit1.pas(38): ';' expected but '.' found
[Error] Unit1.pas(40): Declaration expected but end of file found
[Fatal Error] Project1.dpr(5): Could not compile used unit 'Unit1.pas'
[hurra] </span>

w 1
Do uses dodaj Registry;