how do I enable php to support DBA handlers?

I need some help configuring php on win XP to use DBA handlers. Does anyone have experience with this? I looked at the php manual and it says to download and install one of several types of DBM systems like: db4 and gdbm. The manual also says to install by: ... using the --enable-dba=shared configuration option you can build a dynamic loadable module to enable PHP for basic support of dbm-style databases. You also have to add support for at least one of the following handlers by specifying the --with-XXXX configure switch to your PHP configure line. I know this is done somewhere in the php.ini, but where? thanks- ===== ---------------- "forget your lust for the rich man's gold. All that you need, is in your soul. You can do this if you try. All that I want for you my son, is to be satisfied" ~ Lynard Skynard