&reftitle.install; These functions are enabled by default, using the bundled expat library. You can disable XML support with --disable-xml. If you compile PHP as a module for Apache 1.3.9 or later, PHP will automatically use the bundled expat library from Apache. In order you dont't want to use the bundled expat library configure PHP --with-expat-dir=DIR, where DIR should point to the base installation directory of expat. &windows.builtin;