diff --git a/Launcher/src/main/java/pro/gravit/launcher/LauncherEngine.java b/Launcher/src/main/java/pro/gravit/launcher/LauncherEngine.java
index f2d84e0e..df2edcb3 100644
--- a/Launcher/src/main/java/pro/gravit/launcher/LauncherEngine.java
+++ b/Launcher/src/main/java/pro/gravit/launcher/LauncherEngine.java
@@ -12,6 +12,7 @@
 import pro.gravit.launcher.gui.RuntimeProvider;
 import pro.gravit.launcher.hwid.HWIDProvider;
 import pro.gravit.launcher.managers.ClientGsonManager;
+import pro.gravit.launcher.managers.ClientHookManager;
 import pro.gravit.launcher.managers.ConsoleManager;
 import pro.gravit.launcher.request.Request;
 import pro.gravit.launcher.request.RequestException;
@@ -74,8 +75,9 @@ public void start(String... args) throws Throwable {
         LauncherConfig.getAutogenConfig().initModules();
         Launcher.modulesManager.preInitModules();
         if (runtimeProvider == null) runtimeProvider = new JSRuntimeProvider();
+        ClientHookManager.initGuiHook.hook(runtimeProvider);
         runtimeProvider.init(false);
-        runtimeProvider.preLoad();
+        //runtimeProvider.preLoad();
         if (Request.service == null) {
             String address = Launcher.getConfig().address;
             LogHelper.debug("Start async connection to %s", address);
@@ -99,7 +101,7 @@ public void start(String... args) throws Throwable {
             };
         }
         LauncherGuardManager.initGuard(false);
-        UpdateRequest.setController(new LauncherUpdateController());
+        if(UpdateRequest.getController() == null) UpdateRequest.setController(new LauncherUpdateController());
         Objects.requireNonNull(args, "args");
         if (started.getAndSet(true))
             throw new IllegalStateException("Launcher has been already started");
diff --git a/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncher.java b/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncher.java
index 32b35dd4..b0be3c91 100644
--- a/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncher.java
+++ b/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncher.java
@@ -38,6 +38,7 @@
 import pro.gravit.launcher.hasher.HashedDir;
 import pro.gravit.launcher.hwid.HWIDProvider;
 import pro.gravit.launcher.managers.ClientGsonManager;
+import pro.gravit.launcher.managers.ClientHookManager;
 import pro.gravit.launcher.profiles.ClientProfile;
 import pro.gravit.launcher.profiles.PlayerProfile;
 import pro.gravit.launcher.request.Request;
@@ -341,6 +342,7 @@ public static Process launch(
                         output.writeString(Launcher.gsonManager.gson.toJson(profile), 0);
                         assetHDir.write(output);
                         clientHDir.write(output);
+                        ClientHookManager.paramsOutputHook.hook(output);
                     }
                     clientStarted = true;
                 }
@@ -383,8 +385,10 @@ public static Process launch(
         profile.pushOptionalJvmArgs(context.args);
         Collections.addAll(context.args, "-Djava.library.path=".concat(params.clientDir.resolve(NATIVES_DIR).toString())); // Add Native Path
         Collections.addAll(context.args, "-javaagent:".concat(pathLauncher));
+        ClientHookManager.clientLaunchHook.hook(context);
         LauncherGuardManager.guard.addCustomParams(context);
         Collections.addAll(context.args, ClientLauncher.class.getName());
+        ClientHookManager.clientLaunchFinallyHook.hook(context);
 
         // Print commandline debug message
         LogHelper.debug("Commandline: " + context.args);
@@ -404,7 +408,9 @@ public static Process launch(
             builder.redirectOutput(Redirect.PIPE);
         }
         // Let's rock!
+        ClientHookManager.preStartHook.hook(context, builder);
         process = builder.start();
+        if(ClientHookManager.postStartHook.hook(context, builder)) return process;
         if (!pipeOutput) {
             for (int i = 0; i < 50; ++i) {
                 if (!process.isAlive()) {
@@ -454,6 +460,7 @@ public static void main(String... args) throws Throwable {
                     profile = Launcher.gsonManager.gson.fromJson(input.readString(0), ClientProfile.class);
                     assetHDir = new HashedDir(input);
                     clientHDir = new HashedDir(input);
+                    ClientHookManager.paramsInputHook.hook(input);
                 }
             }
         } catch (IOException ex) {
diff --git a/Launcher/src/main/java/pro/gravit/launcher/managers/ClientHookManager.java b/Launcher/src/main/java/pro/gravit/launcher/managers/ClientHookManager.java
new file mode 100644
index 00000000..3758d281
--- /dev/null
+++ b/Launcher/src/main/java/pro/gravit/launcher/managers/ClientHookManager.java
@@ -0,0 +1,20 @@
+package pro.gravit.launcher.managers;
+
+import pro.gravit.launcher.client.ClientLauncherContext;
+import pro.gravit.launcher.gui.RuntimeProvider;
+import pro.gravit.launcher.serialize.HInput;
+import pro.gravit.launcher.serialize.HOutput;
+import pro.gravit.utils.BiHookSet;
+import pro.gravit.utils.HookSet;
+
+public class ClientHookManager {
+    public static HookSet<RuntimeProvider> initGuiHook = new HookSet<>();
+    public static HookSet<HInput> paramsInputHook = new HookSet<>();
+    public static HookSet<HOutput> paramsOutputHook = new HookSet<>();
+
+    public static HookSet<ClientLauncherContext> clientLaunchHook = new HookSet<>();
+    public static HookSet<ClientLauncherContext> clientLaunchFinallyHook = new HookSet<>();
+
+    public static BiHookSet<ClientLauncherContext, ProcessBuilder> preStartHook = new BiHookSet<>();
+    public static BiHookSet<ClientLauncherContext, ProcessBuilder> postStartHook = new BiHookSet<>();
+}
diff --git a/LauncherAPI/src/main/java/pro/gravit/launcher/request/update/UpdateRequest.java b/LauncherAPI/src/main/java/pro/gravit/launcher/request/update/UpdateRequest.java
index c0977a38..7a45d41a 100644
--- a/LauncherAPI/src/main/java/pro/gravit/launcher/request/update/UpdateRequest.java
+++ b/LauncherAPI/src/main/java/pro/gravit/launcher/request/update/UpdateRequest.java
@@ -46,6 +46,10 @@ public interface UpdateController {
     public static void setController(UpdateController controller) {
         UpdateRequest.controller = controller;
     }
+    public static UpdateController getController()
+    {
+        return controller;
+    }
 
     @Override
     public String getType() {