Still the same errors with both ways.
And caling $db->lastErrorCode() and $db->lastErrorMsg() just says:
101 unknown error
Not sure if it is windows error just being forwarded or a true PHP one.
Calling this way
$db->query("SELECT load_extension('cvtab.dll','sqlite3_cvtab_init');");
allows specifying the non default entry point name as 2nd parameter, not sure if that might be the problem with
$db->loadExtension('cvtab.dll');
...
Thanks for mentioning enable_dl, didn't know about it!!
And to the other responses also as I suspect it will definately help with the hurdles as I go!