Hi All, As my previous mail about fail on PHP5-MySQL, then I removed all of php.ini (included -recomended and -dist). Then used phpinfo(), I found there is php still work and found and informed "Configuration File(php.ini) Path = C:\WINNT". How can this be happenned? (I believe, this will answer why cannnot load MySQL extension problem on my Win2000) Thanks in advance for your answer.