MSSQL connection

LS, I am trying to get a connection to a remote MSSQL server. This is what I found in the online manual : <quote> mssql_connect() establishes a connection to a MS SQL server. The servername argument has to be a valid servername that is defined in the 'interfaces' file. </quote> This is the command given : <quote> $test = mssql_connect("SQL-001","whoever","whatever"); </quote> This is the output of the code snippet <quote> Fatal error: Call to undefined function: mssql_connect() in c:\program files\apache\htdocs\pestest\axtest.php on line 5 </quote> The error message seems to be out of line with the manual . I was wondering whether this is related to the definition in the 'interfaces' file (whatever that may be). All help highly appreciated. Wim