diff --git a/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherProcess.java b/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherProcess.java
index 94abd9e2..4136aeb8 100644
--- a/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherProcess.java
+++ b/Launcher/src/main/java/pro/gravit/launcher/client/ClientLauncherProcess.java
@@ -31,6 +31,8 @@
 import java.util.stream.Collectors;
 
 public class ClientLauncherProcess {
+
+    public final List<String> pre = new LinkedList<>();
     public final ClientParams params = new ClientParams();
     public final List<String> jvmArgs = new LinkedList<>();
     public final List<String> jvmModules = new LinkedList<>();
@@ -134,7 +136,7 @@ private void applyClientProfile() {
     public void start(boolean pipeOutput) throws IOException, InterruptedException {
         if (isStarted) throw new IllegalStateException("Process already started");
         LauncherEngine.modulesManager.invokeEvent(new ClientProcessBuilderPreLaunchEvent(this));
-        List<String> processArgs = new LinkedList<>();
+        List<String> processArgs = new LinkedList<>(pre);
         processArgs.add(executeFile.toString());
         processArgs.addAll(jvmArgs);
         if (javaVersion.version >= 9) {
diff --git a/Launcher/src/main/java/pro/gravit/launcher/client/DirBridge.java b/Launcher/src/main/java/pro/gravit/launcher/client/DirBridge.java
index 8cd5b337..b26ccd3f 100644
--- a/Launcher/src/main/java/pro/gravit/launcher/client/DirBridge.java
+++ b/Launcher/src/main/java/pro/gravit/launcher/client/DirBridge.java
@@ -112,6 +112,22 @@ public static Path getGuardDir() {
         return dir.resolve("guard");
     }
 
+    public static Path getGuardDir(JVMHelper.ARCH arch, JVMHelper.OS os) {
+        Path dir = getGuardDir().resolve(makeSpecialGuardDirName(arch, os));
+        try {
+            IOHelper.createParentDirs(dir);
+        } catch (Throwable e) {
+            throw new RuntimeException(e);
+        }
+        return dir;
+    }
+
+
+
+    public static String makeSpecialGuardDirName(JVMHelper.ARCH arch, JVMHelper.OS os) {
+        return String.format("%s-%s", arch.name, os.name);
+    }
+
     public static Path getLegacyLauncherDir(String projectname) {
         return IOHelper.HOME_DIR.resolve(projectname);
     }