Any call to socket_bind() which would fail will cause php.exe to crash:

Exception: access violation (0xc0000005), Address 0x10011b1b

Sample:

<?
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$socket2 = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_bind($socket, "127.0.0.1", 5799);
socket_bind($socket2, "127.0.0.1", 5799);
?>

OR

<?
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_bind($socket, '1.1.1.1', 4567);
?>

I used the windows build available from www.php.net, and I also used the php-ini.recommended, except that I uncommented the lines to load the modules php_bz2.dll, php_sockets.dll, php_zip.dll.

NOTE: In retrospect, this may be the same bug as #21585

http://bugs.php.net/21585