MSSQL windows Authentication

Configuration for MSSQL windows Authentication
1)Java Code:-
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance();
connection = DriverManager.getConnection("jdbc:sqlserver://localhost;database=Map;integratedSecurity=true");

2) dll configuration
copy sqljdbc_auth.dll in java/jre/bin directory( which is available in sqljdbc_4.0.2206.100_enu.tar on microsoft site).
other wise below error will come

Aug 22, 2014 8:44:25 PM com.microsoft.sqlserver.jdbc.AuthenticationJNI <clinit>

WARNING: Failed to load the sqljdbc_auth.dll cause : no sqljdbc_auth in java.library.path

com.microsoft.sqlserver.jdbc.SQLServerException: This driver is not configured for integrated authentication. ClientConnectionId:264724cd-4fcf-463e-bf64-6a550077eab2

at com.microsoft.sqlserver.jdbc.SQLServerConnection.terminate(SQLServerConnection.java:1667)

at com.microsoft.sqlserver.jdbc.AuthenticationJNI.<init>(AuthenticationJNI.java:60)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.logon(SQLServerConnection.java:2229)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.access$000(SQLServerConnection.java:41)

at com.microsoft.sqlserver.jdbc.SQLServerConnection$LogonCommand.doExecute(SQLServerConnection.java:2220)

at com.microsoft.sqlserver.jdbc.TDSCommand.execute(IOBuffer.java:5696)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(SQLServerConnection.java:1715)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(SQLServerConnection.java:1326)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.login(SQLServerConnection.java:991)

at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(SQLServerConnection.java:827)

at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(SQLServerDriver.java:1012)

at java.sql.DriverManager.getConnection(DriverManager.java:582)

at java.sql.DriverManager.getConnection(DriverManager.java:207)

at com.dao.DBUtility.getConnection(DBUtility.java:30)

at com.dao.DataDao.<init>(DataDao.java:12)

at com.servlet.MapServlet.getStates(MapServlet.java:39)

at com.servlet.MapServlet.doGet(MapServlet.java:29)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)

at java.lang.Thread.run(Thread.java:662)

Caused by: java.lang.UnsatisfiedLinkError: no sqljdbc_auth in java.library.path

at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1738)

at java.lang.Runtime.loadLibrary0(Runtime.java:823)

at java.lang.System.loadLibrary(System.java:1028)

at com.microsoft.sqlserver.jdbc.AuthenticationJNI.<clinit>(AuthenticationJNI.java:35)

... 29 more

null

java.lang.NullPointerException

at com.dao.DataDao.getState(DataDao.java:129)

at com.servlet.MapServlet.getStates(MapServlet.java:40)