PHP4B4-pre / MySQL / WinNT

Hi -- I am having trouble loading php_mysql.dll from the php.ini or even from a file. I'm using PHP4B4-pre and the MySQL modules available from http://www.php.net/version4 download area. It is set up under IIS as a CGI (ISAPI gives me a 500 -- more into that later) I have made extension_dir in php.ini to be "", and have a page info.html which then loads the dl and does phpinfo(). I copied both libmysql.dll, php_mysql.dll into D:\. They also exist in C:\WINNT\SYSTEM32. There is no difference if I try dl("C:\\WINNT\\SYSTEM32\\php_mysql.dll") or dl("php_mysql.dll"); If someone can point me to a FAQ/Message about this, or has any ideas I would be greatful. I scoured the php4beta list but I might have missed something. I get: Fatal error: Unable to load dynamic library 'D:\php_mysql.dll' The specified procedure could not be found. in D:\wwwroot\opennetworks.egrail.com\info.html on line 2 info.html: <? dl("php_mysql.dll"); phpinfo(); ?> You can see what I am talking about at: http://jgreen.egrail.com/info.html TIA, -Al Albert Brown http://www.egrail.com/