mail() bcc

[scuba]

i have this code which no-one seems to be able to solve.:

$headers = "From: $fromname <$fromaddress>\r\n";
$headers.= "To: MPI Members <$fromaddress>\r\n";
$headers.= "Reply-To: $fromaddress\r\n";
$headers.= "bcc: [e-mail]\r\n";

$to = "[e-mail]>";

mail($to, $Subject, $words, $headers);

is it even possible to use bcc in php on a win32 system?

Thanks,
Steve