After I get search results I had to know if I already have the file I intend to download in my computer.
So I open "my kazaa lite" and sort it by file size and look to see if I already have a file with the same size.
If yes, I do not download this file (the size is a good indication for 99.99% of the files).
This is a very heavy and time-consuming procedure.
Did any one know any kazza option or any utility to do it in a faster way?