PHP Bdx extension NOT loaded...

Hi, I nedd all your Help!! i am trying to run a program, and in the install instruction there is that i have to load the dbx-module in this way: I have put this in my PHP.INI extension=php_dbx.dll [dbx] ; returned column names can be converted for compatibility reasons ; possible values for dbx.colnames_case are ; "unchanged" (default, if not set) ; "lowercase" ; "uppercase" ; the recommended default is either upper- or lowercase, but ; unchanged is currently set for backwards compatibility ; dbx.colnames_case="unchanged" dbx.colnames_case="lowercase" But when i start the program, i allways get this error message: Warning: dbx: module '' not loaded. in c:\programmi\apache group\apache\myhtdocs\theapp\app_globals.php on line 163 It seems that the DBX.MODULE IS NOT GETTING LOADED.... WHY? Thank you for every help...I am trying to find the solution since 2 days, but getting no success.... isacchi