> (mysql) ! simple : my soft use php and mysql ... php load libmysql.dll
> from the dll he have in his directory and my soft load libmysql from
> the system32 directory .... and the result are that the 2 dll are not
> the same and i don't know why but the result was an eacessviolation in
> php !!

Isn't the answer obvious? MySQL is doomed software, which client
library is full of bugs and incompatible between versions. Firebird is
very different.

SY, SD.