diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/LaunchServer.java b/LaunchServer/src/main/java/ru/gravit/launchserver/LaunchServer.java
index 1a01c2c9..4784317a 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/LaunchServer.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/LaunchServer.java
@@ -8,6 +8,8 @@
 import ru.gravit.launcher.managers.GarbageManager;
 import ru.gravit.launcher.profiles.ClientProfile;
 import ru.gravit.launcher.serialize.signed.SignedObjectHolder;
+import ru.gravit.launchserver.auth.protect.NoProtectHandler;
+import ru.gravit.launchserver.auth.protect.ProtectHandler;
 import ru.gravit.launchserver.components.AuthLimiterComponent;
 import ru.gravit.launchserver.auth.handler.AuthHandler;
 import ru.gravit.launchserver.auth.handler.MemoryAuthHandler;
@@ -89,6 +91,8 @@ public static final class Config {
 
         public AuthHandler authHandler;
 
+        public ProtectHandler protectHandler;
+
         public PermissionsHandler permissionsHandler;
 
         public TextureProvider textureProvider;
@@ -159,6 +163,10 @@ public void verify() {
             if (authHandler == null) {
                 throw new NullPointerException("AuthHandler must not be null");
             }
+            if(protectHandler == null)
+            {
+                throw new NullPointerException("ProtectHandler must not be null");
+            }
             if (authProvider == null || authProvider[0] == null) {
                 throw new NullPointerException("AuthProvider must not be null");
             }
@@ -377,6 +385,7 @@ public LaunchServer(Path dir, String[] args) throws IOException, InvalidKeySpecE
         PermissionsHandler.registerHandlers();
         Response.registerResponses();
         Component.registerComponents();
+        ProtectHandler.registerHandlers();
         LaunchServer.server = this;
 
         // Set command handler
@@ -435,6 +444,10 @@ public LaunchServer(Path dir, String[] args) throws IOException, InvalidKeySpecE
         for (AuthProvider provider : config.authProvider) {
             provider.init();
         }
+        if(config.protectHandler != null)
+        {
+            config.protectHandler.checkLaunchServerLicense();
+        }
         config.authHandler.init();
         if(config.components != null)
         {
@@ -546,6 +559,7 @@ public static void initGson() {
         Launcher.gsonBuilder.registerTypeAdapter(PermissionsHandler.class, new PermissionsHandlerAdapter());
         Launcher.gsonBuilder.registerTypeAdapter(HWIDHandler.class, new HWIDHandlerAdapter());
         Launcher.gsonBuilder.registerTypeAdapter(Component.class, new ComponentAdapter());
+        Launcher.gsonBuilder.registerTypeAdapter(ProtectHandler.class, new ProtectHandlerAdapter());
         Launcher.gson = Launcher.gsonBuilder.create();
 
         //Human readable
@@ -557,6 +571,7 @@ public static void initGson() {
         LaunchServer.gsonBuilder.registerTypeAdapter(PermissionsHandler.class, new PermissionsHandlerAdapter());
         LaunchServer.gsonBuilder.registerTypeAdapter(HWIDHandler.class, new HWIDHandlerAdapter());
         LaunchServer.gsonBuilder.registerTypeAdapter(Component.class, new ComponentAdapter());
+        LaunchServer.gsonBuilder.registerTypeAdapter(ProtectHandler.class, new ProtectHandlerAdapter());
         LaunchServer.gson = LaunchServer.gsonBuilder.create();
     }
 
@@ -608,6 +623,7 @@ private void generateConfigIfNotExists() throws IOException {
         newConfig.startScript = JVMHelper.OS_TYPE.equals(JVMHelper.OS.MUSTDIE) ? "." + File.separator + "start.bat" : "." + File.separator + "start.sh";
         newConfig.authHandler = new MemoryAuthHandler();
         newConfig.hwidHandler = new AcceptHWIDHandler();
+        newConfig.protectHandler = new NoProtectHandler();
 
         newConfig.authProvider = new AuthProvider[]{new RejectAuthProvider("Настройте authProvider")};
         newConfig.textureProvider = new RequestTextureProvider("http://example.com/skins/%username%.png", "http://example.com/cloaks/%username%.png");
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/auth/protect/NoProtectHandler.java b/LaunchServer/src/main/java/ru/gravit/launchserver/auth/protect/NoProtectHandler.java
new file mode 100644
index 00000000..400c9a3e
--- /dev/null
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/auth/protect/NoProtectHandler.java
@@ -0,0 +1,16 @@
+package ru.gravit.launchserver.auth.protect;
+
+import ru.gravit.launchserver.response.auth.AuthResponse;
+import ru.gravit.utils.helper.SecurityHelper;
+
+public class NoProtectHandler extends ProtectHandler {
+    @Override
+    public String generateSecureToken(AuthResponse.AuthContext context) {
+        return SecurityHelper.randomStringToken();
+    }
+
+    @Override
+    public void checkLaunchServerLicense() {
+        // None
+    }
+}
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/auth/protect/ProtectHandler.java b/LaunchServer/src/main/java/ru/gravit/launchserver/auth/protect/ProtectHandler.java
new file mode 100644
index 00000000..9145df79
--- /dev/null
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/auth/protect/ProtectHandler.java
@@ -0,0 +1,46 @@
+package ru.gravit.launchserver.auth.protect;
+
+import ru.gravit.launchserver.auth.AuthException;
+import ru.gravit.launchserver.auth.handler.AuthHandler;
+import ru.gravit.launchserver.response.auth.AuthResponse;
+import ru.gravit.utils.helper.VerifyHelper;
+
+import java.util.Map;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+
+public abstract class ProtectHandler {
+    private static final Map<String, Class<? extends ProtectHandler>> PROTECT_HANDLERS = new ConcurrentHashMap<>(4);
+    private static boolean registredHandl = false;
+
+
+    public static void registerHandler(String name, Class<? extends ProtectHandler> adapter) {
+        VerifyHelper.verifyIDName(name);
+        VerifyHelper.putIfAbsent(PROTECT_HANDLERS, name, Objects.requireNonNull(adapter, "adapter"),
+                String.format("Protect handler has been already registered: '%s'", name));
+    }
+
+    public static Class<? extends ProtectHandler> getHandlerClass(String name) {
+        return PROTECT_HANDLERS.get(name);
+    }
+
+    public static String getHandlerName(Class<ProtectHandler> clazz) {
+        for (Map.Entry<String, Class<? extends ProtectHandler>> e : PROTECT_HANDLERS.entrySet()) {
+            if (e.getValue().equals(clazz)) return e.getKey();
+        }
+        return null;
+    }
+
+    public static void registerHandlers() {
+        if (!registredHandl) {
+            registerHandler("none", NoProtectHandler.class);
+            registredHandl = true;
+        }
+    }
+
+    public abstract String generateSecureToken(AuthResponse.AuthContext context); //Генерация токена для передачи его в LauncherGuardInterface
+
+    public abstract void checkLaunchServerLicense(); //Выдает SecurityException при ошибке проверки лицензии
+    //public abstract
+}
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/config/ProtectHandlerAdapter.java b/LaunchServer/src/main/java/ru/gravit/launchserver/config/ProtectHandlerAdapter.java
new file mode 100644
index 00000000..6e6fcd19
--- /dev/null
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/config/ProtectHandlerAdapter.java
@@ -0,0 +1,37 @@
+package ru.gravit.launchserver.config;
+
+import com.google.gson.*;
+import ru.gravit.launchserver.auth.handler.AuthHandler;
+import ru.gravit.launchserver.auth.protect.ProtectHandler;
+import ru.gravit.utils.helper.LogHelper;
+
+import java.lang.reflect.Type;
+
+public class ProtectHandlerAdapter implements JsonSerializer<ProtectHandler>, JsonDeserializer<ProtectHandler> {
+    private static final String PROP_NAME = "type";
+
+    @Override
+    public ProtectHandler deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) throws JsonParseException {
+        String typename = json.getAsJsonObject().getAsJsonPrimitive(PROP_NAME).getAsString();
+        Class<? extends ProtectHandler> cls = ProtectHandler.getHandlerClass(typename);
+        if(cls == null)
+        {
+            LogHelper.error("ProtectHandler %s not found", typename);
+            return null;
+        }
+
+
+        return (ProtectHandler) context.deserialize(json, cls);
+    }
+
+    @Override
+    public JsonElement serialize(ProtectHandler src, Type typeOfSrc, JsonSerializationContext context) {
+        JsonObject jo = context.serialize(src).getAsJsonObject();
+
+        @SuppressWarnings("unchecked")
+        String classPath = ProtectHandler.getHandlerName((Class<ProtectHandler>) src.getClass());
+        jo.add(PROP_NAME, new JsonPrimitive(classPath));
+
+        return jo;
+    }
+}
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/response/auth/AuthResponse.java b/LaunchServer/src/main/java/ru/gravit/launchserver/response/auth/AuthResponse.java
index 6e4574b6..1b29cedc 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/response/auth/AuthResponse.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/response/auth/AuthResponse.java
@@ -137,10 +137,12 @@ public void reply() throws Exception {
             requestError("Internal auth handler error");
             return;
         }
+        String protectToken = server.config.protectHandler.generateSecureToken(context);
         writeNoError(output);
         // Write profile and UUID
         ProfileByUUIDResponse.getProfile(server, uuid, result.username, client).write(output);
         output.writeASCII(result.accessToken, -SecurityHelper.TOKEN_STRING_LENGTH);
         clientData.permissions.write(output);
+        output.writeString(protectToken, SerializeLimits.MAX_CUSTOM_TEXT);
     }
 }
diff --git a/Launcher/runtime/dialog/dialog.js b/Launcher/runtime/dialog/dialog.js
index dfa26435..712b3fcb 100644
--- a/Launcher/runtime/dialog/dialog.js
+++ b/Launcher/runtime/dialog/dialog.js
@@ -215,6 +215,7 @@ function doAuth(login, rsaPassword) {
     overlay.show(processing.overlay, function (event) {
         FunctionalBridge.getHWID.join();
         makeAuthRequest(login, rsaPassword, function (result) {
+            FunctionalBridge.setAuthParams(result);
             loginData = { pp: result.playerProfile , accessToken: result.accessToken, permissions: result.permissions};
 
             overlay.hide(0, function () {
diff --git a/Launcher/src/main/java/ru/gravit/launcher/client/FunctionalBridge.java b/Launcher/src/main/java/ru/gravit/launcher/client/FunctionalBridge.java
index f055ebda..d001f8da 100644
--- a/Launcher/src/main/java/ru/gravit/launcher/client/FunctionalBridge.java
+++ b/Launcher/src/main/java/ru/gravit/launcher/client/FunctionalBridge.java
@@ -3,6 +3,7 @@
 import javafx.concurrent.Task;
 import ru.gravit.launcher.HWID;
 import ru.gravit.launcher.LauncherAPI;
+import ru.gravit.launcher.events.request.AuthRequestEvent;
 import ru.gravit.launcher.guard.LauncherGuardManager;
 import ru.gravit.launcher.hasher.FileNameMatcher;
 import ru.gravit.launcher.hasher.HashedDir;
@@ -103,6 +104,12 @@ public static HasherStore getDefaultHasherStore() {
         return HasherManager.getDefaultStore();
     }
 
+    @LauncherAPI
+    public static void setAuthParams(AuthRequestEvent event)
+    {
+        LauncherGuardManager.guard.setProtectToken(event.protectToken);
+    }
+
     @FunctionalInterface
     public interface HashedDirRunnable {
         SignedObjectHolder<HashedDir> run() throws Exception;
diff --git a/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherGuardInterface.java b/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherGuardInterface.java
index fb6e8fdd..be71089c 100644
--- a/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherGuardInterface.java
+++ b/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherGuardInterface.java
@@ -11,4 +11,5 @@ public interface LauncherGuardInterface {
     void init(boolean clientInstance);
     void addCustomParams(ClientLauncherContext context);
     void addCustomEnv(ClientLauncherContext context);
+    void setProtectToken(String token);
 }
diff --git a/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherJavaGuard.java b/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherJavaGuard.java
index 77c4606a..31ef0941 100644
--- a/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherJavaGuard.java
+++ b/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherJavaGuard.java
@@ -43,4 +43,9 @@ public void addCustomParams(ClientLauncherContext context) {
     public void addCustomEnv(ClientLauncherContext context) {
 
     }
+
+    @Override
+    public void setProtectToken(String token) {
+
+    }
 }
diff --git a/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherNoGuard.java b/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherNoGuard.java
index 9bd1923c..2fbc872b 100644
--- a/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherNoGuard.java
+++ b/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherNoGuard.java
@@ -40,4 +40,9 @@ public void addCustomParams(ClientLauncherContext context) {
     public void addCustomEnv(ClientLauncherContext context) {
 
     }
+
+    @Override
+    public void setProtectToken(String token) {
+
+    }
 }
diff --git a/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherWrapperGuard.java b/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherWrapperGuard.java
index bd97ebbb..44c60875 100644
--- a/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherWrapperGuard.java
+++ b/Launcher/src/main/java/ru/gravit/launcher/guard/LauncherWrapperGuard.java
@@ -69,4 +69,9 @@ public void addCustomEnv(ClientLauncherContext context) {
             env.put("GUARD_LICENSE_KEY", config.guardLicenseKey);
         }
     }
+
+    @Override
+    public void setProtectToken(String token) {
+
+    }
 }
diff --git a/LauncherAPI/src/main/java/ru/gravit/launcher/request/auth/AuthRequest.java b/LauncherAPI/src/main/java/ru/gravit/launcher/request/auth/AuthRequest.java
index f9e2e7f5..0302dfd5 100644
--- a/LauncherAPI/src/main/java/ru/gravit/launcher/request/auth/AuthRequest.java
+++ b/LauncherAPI/src/main/java/ru/gravit/launcher/request/auth/AuthRequest.java
@@ -118,7 +118,8 @@ protected AuthRequestEvent requestDo(HInput input, HOutput output) throws IOExce
         PlayerProfile pp = new PlayerProfile(input);
         String accessToken = input.readASCII(-SecurityHelper.TOKEN_STRING_LENGTH);
         ClientPermissions permissions = new ClientPermissions(input);
-        return new AuthRequestEvent(pp, accessToken, permissions);
+        String protectToken = input.readString(SerializeLimits.MAX_CUSTOM_TEXT);
+        return new AuthRequestEvent(permissions, pp, accessToken, protectToken);
     }
 
     @Override
diff --git a/LauncherAPI/src/main/java/ru/gravit/launcher/request/update/UpdateRequest.java b/LauncherAPI/src/main/java/ru/gravit/launcher/request/update/UpdateRequest.java
index 80352243..96c01bc4 100644
--- a/LauncherAPI/src/main/java/ru/gravit/launcher/request/update/UpdateRequest.java
+++ b/LauncherAPI/src/main/java/ru/gravit/launcher/request/update/UpdateRequest.java
@@ -303,9 +303,16 @@ public Integer getLegacyType() {
     }
 
     @Override
-    protected UpdateRequestEvent requestDo(HInput input, HOutput output) throws IOException, SignatureException {
+    public UpdateRequestEvent request() throws Exception {
         Files.createDirectories(dir);
         localDir = new HashedDir(dir, matcher, false, digest);
+
+        // Start request
+        return super.request();
+    }
+
+    @Override
+    protected UpdateRequestEvent requestDo(HInput input, HOutput output) throws IOException, SignatureException {
         // Write update dir name
         output.writeString(dirName, 255);
         output.flush();
diff --git a/libLauncher/src/main/java/ru/gravit/launcher/events/request/AuthRequestEvent.java b/libLauncher/src/main/java/ru/gravit/launcher/events/request/AuthRequestEvent.java
index a61a0a18..aab137be 100644
--- a/libLauncher/src/main/java/ru/gravit/launcher/events/request/AuthRequestEvent.java
+++ b/libLauncher/src/main/java/ru/gravit/launcher/events/request/AuthRequestEvent.java
@@ -20,6 +20,8 @@ public AuthRequestEvent() {
     public PlayerProfile playerProfile;
     @LauncherNetworkAPI
     public String accessToken;
+    @LauncherNetworkAPI
+    public String protectToken;
 
     public AuthRequestEvent(PlayerProfile pp, String accessToken, ClientPermissions permissions) {
         this.playerProfile = pp;
@@ -27,6 +29,13 @@ public AuthRequestEvent(PlayerProfile pp, String accessToken, ClientPermissions
         this.permissions = permissions;
     }
 
+    public AuthRequestEvent(ClientPermissions permissions, PlayerProfile playerProfile, String accessToken, String protectToken) {
+        this.permissions = permissions;
+        this.playerProfile = playerProfile;
+        this.accessToken = accessToken;
+        this.protectToken = protectToken;
+    }
+
     @Override
     public UUID getUUID() {
         return uuid;