XAMPP 1.7.7 cannot recognize sqljdbc4.jar feature

[gitofahmi]

According to Microsoft (http://msdn.microsoft.com/en-us/library/ms378526(v=SQL.90).aspx), when using sqljdbc4.jar to access MS SQL Server from JSP, we do not have to call the driver with Class.forName as we have to with sqljdbc.jar.
But after updating my XAMPP 1.7.4 to 1.7.7 I got "No Suitable Driver" error when using sqljdbc4.jar as Microsoft said.
It's solved when I add Class.forName to the application, the app can operate normally.
So, is it true that XAMPP 1.7.7 cannot recognize sqljdbc4.jar feature for accessing MS SQL without calling the driver first?