diff --git a/build.xml b/build.xml
index db4a47588..94fc8df40 100644
--- a/build.xml
+++ b/build.xml
@@ -395,7 +395,7 @@
     <target name="-set-console-type">
         <property name="exe.type" value="console" />
     </target>
-    <target name="-exe-config" depends="-loadversion"> 
+    <!--<target name="-exe-config" depends="-loadversion"> 
         <echoxml file="${exe.config}">
             <launch4jConfig>
                 <dontWrapJar>true</dontWrapJar>
@@ -420,7 +420,6 @@
                     <jdkPreference>preferJre</jdkPreference>
                     <runtimeBits>64/32</runtimeBits>
                     <maxHeapPercent>${max.heap.size.percent}</maxHeapPercent>
-                    <!-- <opt>-Xss${max.stack.size}m</opt> -->
                     <opt>-Djava.net.preferIPv4Stack=true</opt>
                     <opt>-Djna.nosys=true</opt>
                 </jre>
@@ -444,7 +443,7 @@
                 </versionInfo>
             </launch4jConfig>
         </echoxml>
-    </target>    
+    </target>-->
     
     <target name="-exe-translator-config"> 
         <echoxml file="${translator_exe.config}">
@@ -487,18 +486,18 @@
             </launch4jConfig>
         </echoxml>
     </target>    
-    <target name="-exe-linux" unless="is_windows" depends="-load-tools,-exe-config,-exe-translator-config">
-        <java jar="${launch4j.path}/launch4j.jar" fork="true">
+    <target name="-exe-linux" unless="is_windows" depends="-load-tools,-exe-translator-config"> <!-- -exe-config -->
+        <!--<java jar="${launch4j.path}/launch4j.jar" fork="true">
             <arg line="${exe.config}" />
-        </java>
+        </java>-->
         <java jar="${launch4j.path}/launch4j.jar" fork="true">
             <arg line="${translator_exe.config}" />
         </java>
     </target>
-    <target name="-exe-windows" if="is_windows" depends="-load-tools,-exe-config,-exe-translator-config">
-        <java jar="${launch4j.path}/launch4j.jar" fork="true">
+    <target name="-exe-windows" if="is_windows" depends="-load-tools,-exe-translator-config"> <!-- -exe-config -->
+        <!--<java jar="${launch4j.path}/launch4j.jar" fork="true">
             <arg line="${exe.config}" />
-        </java>
+        </java>-->
         <java jar="${launch4j.path}/launch4j.jar" fork="true">
             <arg line="${translator_exe.config}" />
         </java>
diff --git a/resources/ffdec.exe b/resources/ffdec.exe
new file mode 100644
index 000000000..d323c08df
Binary files /dev/null and b/resources/ffdec.exe differ
diff --git a/src/com/jpexs/decompiler/flash/gui/Main.java b/src/com/jpexs/decompiler/flash/gui/Main.java
index 483530f2a..500f30903 100644
--- a/src/com/jpexs/decompiler/flash/gui/Main.java
+++ b/src/com/jpexs/decompiler/flash/gui/Main.java
@@ -107,6 +107,7 @@ import java.net.InetSocketAddress;
 import java.net.Proxy;
 import java.net.URL;
 import java.net.URLConnection;
+import java.net.URLDecoder;
 import java.nio.charset.Charset;
 import java.nio.file.FileSystems;
 import java.nio.file.StandardWatchEventKinds;
@@ -2649,11 +2650,28 @@ public class Main {
         }
     }
 
+    /**
+     * To bypass wrong encoded unicode characters coming from EXE,
+     * it Launch5j encodes characters using URLEncoder.
+     * @param args 
+     */
+    private static void decodeLaunch5jArgs(String[] args) {
+        String encargs = System.getProperty("l5j.encargs");
+        if ("true".equals(encargs) || "1".equals(encargs)) {
+            for (int i = 0; i < args.length; ++i) {
+                try {
+                    args[i] = URLDecoder.decode(args[i], "UTF-8");
+                } catch (Exception e) { }
+            }
+        }
+    }
+    
     /**
      * @param args the command line arguments
      * @throws IOException On error
      */
     public static void main(String[] args) throws IOException {
+        decodeLaunch5jArgs(args);
         setSessionLoaded(false);
 
         clearTemp();
@@ -2686,7 +2704,7 @@ public class Main {
                     reloadLastSession();
                 }
             });
-        } else {
+        } else {                       
             checkLibraryVersion();
             setSessionLoaded(true);
             String[] filesToOpen = CommandLineArgumentParser.parseArguments(args);