note 37189 added to ref.mssql

Every time i try lo load the php_mssql.dll extensions (dynamically or in php.ini) i receive this error Warning: dl(): Unable to load dynamic library 'c:\php\extensions\php_mssql.dll' - Access is denied. in C:\Inetpub\wwwroot\prova.php on line 12 The path it's correct and i set read&execute permission for "everyone" in php folder and for the ntwdblib.dll file (located in c:\windows\system32\) My operating system is windows xp whit sqlserver 2000 (sp5) and i'm using php 4.3.4. Someone can help me? Thank you. ---- Manual Page -- http://www.php.net/manual/en/ref.mssql.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+37189 Delete -- http://master.php.net/manage/user-notes.php?action=delete+37189&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+37189&report=yes Search -- http://master.php.net/manage/user-notes.php