tp5无法连接sqlserver2005

This extension requires either the Microsoft SQL Server 2012 Native Client, the Microsoft SQL Server 2008 Native Client or the Microsoft SQL Server 2005 Native Client to communicate with SQL Server.
Access the following URL to download the Microsoft SQL Server 2012 Native Client ODBC driver for x64: http://go.

使用tp5+php5.6连接sqlserver2005报上面的错误，我下载了odbc驱动，还是不行，请问是驱动版本问题嘛还是其他问题？有没有大神知道的