Windows comatibility list (win32), here tests for ... Windows 2000 (w2k): all servers seems okay Windows Server 2003 R2: all servers seems okay Windows XP Service Pack 2: all servers seems okay VISTA Ultimate: all servers seems okay NO (!!!) Win98Se support anymore (only apache seems okay, but NO mysql support) Test cases (only basics): 1) Start Apache/MysQL/Mercury manually 2) Install and uninstall Apache/MysQL/FileZilla FTPD as service (not win98) 3) Switch to PHP4 and back to PHP5 4) phpmyadmin ad hoc test 5) xampp example test For more support please ask/visit our excellent forum: http://www.apachefriends.org/f/ - Kay Vogelgesang, 2008-07-06