After running the code below, PHP 4.0.5 is no longer able to connecto to mysql.  I have tested this at 2 different locations, and the result is the same every time.  Also after visiting the website with this code in it, inetinfo.exe (IIS) crashes.

PHP was installed with php405-installer.exe.  The problem occurs on Windows 2000 Professional SP1 & SP2.  Windows 2000 server has not been tested.  Below is the code that should be pasted into a webpage, and then visited with any browser.  I accidentally caused inetinfo.exe to die with this:

<?
/*
This was written (accidentally) by Tyler Longren <tyler.longren@midiowa.net>.
This was found on accident...thanks to my crappy coding.  :)
Date: 05-14-2001
Kills: Inetinfo.exe on Win2k
*/
session_start();
session_register('username');
session_register('password');
header("Location: $PHP_SELF");
if ($formusername) {
	mysql_connect("$mysql_host","$mysql_user","$mysql_pass");
	mysql_select_db("$mysql_db");
	$auth_sql = mysql_query("SELECT * FROM $mysql_user_table WHERE username =
'$formusername' AND password = '$formpassword'");
	$user_exists = mysql_num_rows($auth_sql);
	if ($user_exists == "1") {
		$username = $formusername;
		$password = $formpassword;

	}
	else {
		$login_error = "<font face=Arial size=2><b>Error:</b></font><br><font
face=Arial size=1>Wrong<br>username/password</b></font>";
		session_unregister('username');
		session_unregister('password');
	}

}
else {
	mysql_connect("$mysql_host","$mysql_user","$mysql_pass");
	mysql_select_db("$mysql_db");
	$auth_sql = mysql_query("SELECT * FROM $mysql_user_table WHERE username =
'$username' AND password = '$password'");
	$user_exists = mysql_num_rows($auth_sql);
	if ($user_exists == "1") {
		// blah blah blah!
	}
	else {
		$login_error = "<font face=Arial size=2><b>Error:</b></font><br><font
face=Arial size=1><b>Wrong<Br>username/password</b></font>";
		session_unregister('username');
		session_unregister('password');
	}
}
if ($login == "no") {
	session_destroy();
	session_unregister('username');
	session_unregister('password');
	header("Location: $PHP_SELF");
}
?>