Connect to MS SQL server on diff machine

OK, I have Apache and PHP 4.0.6 installed. I want to be able to access an MS SQL Server, but I don't want to install SQL Server on the web server. What files are needed in order to do this? Normally, I have no problem with this because I typically have MS SQL Server installed on the web server. The only file I know of to put in the system32 root is ntwdblib.dll. But are there any others? (Aside from enabling the php_mssql.dll). I still get the unable to load php_mssql.dll even though the file exists and the extension_dir path is set to where I keep this extension. This works in all cases where I have the SQL Server running on the same machine as PHP/Apache, etc. So I am guess I am just missing some other files for this to work. ANyone encounter this scenario and realized how to resolve this? Any help or direction is appreciated! TIA, -- Nicole Amashta Web Applications Developer www.aeontrek.com