Can’t extract .zip file

the native unzipper in vista is seriously flawed.

Try a simple free unzipper
http://www.filzip.com/en/download.html
http://www.7-zip.org/download.html

i am also having problems, using winzip.

i need to extract files locally because to install wp2.7 i uploaded zip file and extracted it in cPanel and i think this causes problems with wordpress (i usually do it with other CMS’s etc and its ok).

so i need to get local copies and upload them, replacing the files that im getting errors on:

Warning: Cannot modify header information – headers already sent by (output started at….

wp-login.php
wp-includes/pluggable.php

🙁