"1. Mime::Lite link: no 64 bit system."

So?

"2. Send a mail in Win32 with Gmail: i have linux."

And?

"3. Send email from gmail SMTP: windows too."

Uh huh?

"4. Net::SMTP_Auth: i don't know how to use it. Have you a sample code?"

Had you actually read any of the links (or the replies with solutions) you've been given you'd know that the fact you're not on a 64bit system and not running Windows is irrelevant as none of the code requires either of these, and the sample code you ask for is included in the post linked to.