We have a set of PHP files which uses "dl()" to load the extension "php_mssql.so" at runtime. These were running on a server with PHP 4.3.9 and have been recently moved to a new server with PHP 5.1.6 (both RedHat). I have tried to simply copy the file "php_mssql.so" file to the directory of PHP modules, however it seems to be not compatible with the new version. We dont have permissions to recompile PHP on the server but can copy files on the modules/extensions directory area. I believe we just need to get the updated "php_mssql.so" file onto the server. Any idea where I could download or how to create one? Thank you, LK