php extensions

Hi ! I have downloaded latest php 403 ( my cfg - w98,Apache 1.3.11, php 4.0.3, SYBASE SQL Anywhere 5.5.03 Build#1666) Everything works just fine except when I tried to load some extension I got these warnings. First two (Informix and Sybase) are very important to me. Am I doing something wrong ? Can you help me? Thank you !!! Warning: Unable to load dynamic library 'c:\php\php403\extensions\php_ifx.dll' - One of the library files needed to run this application cannot be found Warning: Unable to load dynamic library 'c:\php\php403\extensions\php_sybase_ct.dll' - One of the library files needed to run this application cannot be found Warning: Unable to load dynamic library 'c:\php\php403\extensions\php_oci8.dll' - One of the library files needed to run this application cannot be found Warning: Unable to load dynamic library 'c:\php\php403\extensions\php_oracle.dll' - One of the library files needed to run this application cannot be found Dan www.customweb.sk <http://www.customweb.sk> dano@customweb.sk <mailto:dano@customweb.sk> ICQ: 84700861