diff --git a/src/serverP2P/ServerP2P.java b/src/serverP2P/ServerP2P.java
index a1c02ee..7835f62 100644
--- a/src/serverP2P/ServerP2P.java
+++ b/src/serverP2P/ServerP2P.java
@@ -29,8 +29,9 @@ public class ServerP2P {
 	 * @param portServer	binded port
 	 * @param hostnameTracker	tracker hostname
 	 * @param portTracker	tracker port
+	 * @param isInteractive	true if application in interactive mode
 	 */
-	public ServerP2P(String hostnameServer, int portServer, String hostnameTracker, int portTracker) {
+	public ServerP2P(String hostnameServer, int portServer, String hostnameTracker, int portTracker, boolean isInteractive) {
 		Scanner scanner = new Scanner(System.in);
 		server = new HostItem(hostnameServer, portServer);
 		tracker = new HostItem(hostnameTracker, portTracker);
@@ -38,7 +39,9 @@ public class ServerP2P {
 		directories.createSubdir(subdir);
 		logger = new Logger(directories.getDataHomeDirectory() + "server.log");
 		System.out.println("Server will listen on port " + portServer + " and serve files from " + directories.getDataHomeDirectory() + subdir);
-		directories.askOpenDataHomeDirectory(subdir, scanner);
+		if(isInteractive){
+			directories.askOpenDataHomeDirectory(subdir, scanner);
+		}
 		scanner.close();
 	}
 
@@ -56,6 +59,7 @@ public class ServerP2P {
 			String hostnameTracker = "";
 			int portTracker = 0;
 			Scanner scanner = new Scanner(System.in);
+			boolean isInteractive = false;
 
 			if ((args.length != 5) && (args.length != 0)){
 				System.out.println("usage : java serveurP2P.ServeurP2P (interactive) or java serveurP2P.ServeurP2P -- <serveurHOSTNAME> <serveurPORT> <trackerHOSTNAME> <trackerPORT> (" + serverPortRange + " and " + trackerPortRange +")");
@@ -67,6 +71,7 @@ public class ServerP2P {
 					hostnameTracker = args[3];
 					portTracker = Integer.valueOf(Integer.parseInt(args[4]));
 			} else {
+				isInteractive = true;
 				System.out.println("Server, enter hostname to bind (default = localhost): ");
 				hostnameServer = scanner.nextLine();
 				if(hostnameServer.equals("")){
@@ -103,7 +108,7 @@ public class ServerP2P {
 					System.out.println("using port : " + portServer);
 					System.out.println("tracker hostname : " + hostnameTracker);
 					System.out.println("tracker port : " + portTracker);
-					ServerP2P s = new ServerP2P(hostnameServer, portServer, hostnameTracker, portTracker);
+					ServerP2P s = new ServerP2P(hostnameServer, portServer, hostnameTracker, portTracker, isInteractive);
 					ServerManagementUDP smudp = new ServerManagementUDP(s.directories.getDataHomeDirectory() + subdir, s.server, s.tracker, s.logger);
 					ServerManagementTCP smtcp = new ServerManagementTCP(s.directories.getDataHomeDirectory() + subdir, s.server, s.tracker, s.logger);
 					Thread tudp = new Thread(smudp);
diff --git a/src/tracker/Tracker.java b/src/tracker/Tracker.java
index 8b096a6..9dec113 100644
--- a/src/tracker/Tracker.java
+++ b/src/tracker/Tracker.java
@@ -24,14 +24,17 @@ public class Tracker {
 	/** Constructor with portStr containing a port number.
 	 * @param hostname	hostname to bind
 	 * @param port	port to bind
+	 * @param isInteractive	true if application is in interactive mode
 	 */
-	public Tracker(String hostname, int port) {
+	public Tracker(String hostname, int port, boolean isInteractive) {
 		tracker = new HostItem(hostname, port);
 		directories = new Directories("P2P_JAVA_PROJECT_TRACKER_" + port);
 		logger = new Logger(directories.getDataHomeDirectory() + "tracker.log");
 		System.out.println("Tracker will listen on port " + port + " and write logs into " + directories.getDataHomeDirectory());
 		Scanner scanner = new Scanner(System.in);
-		directories.askOpenDataHomeDirectory(null, scanner);
+		if(isInteractive){
+			directories.askOpenDataHomeDirectory(null, scanner);
+		}
 		scanner.close();
 	}
 
@@ -47,6 +50,7 @@ public class Tracker {
 		String hostname = "";
 		int port = 0;
 		Tracker t;
+		boolean isInteractive = false;
 
 		if ((args.length != 3) && (args.length != 0)){
 			System.out.println("usage : java tracker.Tracker (interactive) or java trackerP2P.trackerP2P -- <hostname> <PORT> (" + trackerPortRange +")");
@@ -55,6 +59,7 @@ public class Tracker {
 				hostname = args[1];
 				port = Integer.valueOf(Integer.parseInt(args[2]));
 		} else {
+			isInteractive = true;
 			System.out.println("Tracker Server, enter hostname to bind (default = localhost): ");
 			hostname = scanner.nextLine();
 			if(hostname.equals("")){
@@ -74,7 +79,7 @@ public class Tracker {
 		System.out.println("using hostname : " + hostname);
 		if(trackerPortRange.isPortInRange(port)) {
 			System.out.println("using port : " + port);
-			t = new Tracker(hostname, port);
+			t = new Tracker(hostname, port, isInteractive);
 			TrackerManagementUDP tmudp = new TrackerManagementUDP(t.tracker, t.logger);
 			TrackerManagementTCP tmtcp = new TrackerManagementTCP(t.tracker, t.logger);
 			Thread tudp = new Thread(tmudp);