Jun 3rd, 2013
After you unzipped php 5.4 over 5.3 on windows you get something like:
Der Prozedureinsprungpunkt "zval_property_ctor" wurde in der DLL "php5ts.dll" nicht gefunden.
PHP is trying to load outdated extensions, because your php.ini is not automatically updated
remove
[PHP_SQLITE]
extension=php_sqlite.dll
from your php ini.
if you have an php_rar.dll
remove this as well. This pecl packages are not compatible with the current version of PHP.