Microsoft PHP SQL Driver vs PHP SQL Driver

[helium]

So on my test machine, I had PHP installed with Apache, and I had the PHP SQL Driver (not the Microsoft one). So, I used mssql_connect() and such commands to deal with the database.When I shifted to another server, it has Microsoft PHP SQL Driver. Now it is crashing and showing me error of PHP_via_FastCGI error, whenever I execute the mssql_connect() and the other mssql_ php commands.Could you please advise on how to solve this? Do I need to change my code to something else? If that is the case, I have hundreds of files, do I need to change in each?Thanks.