diff --git a/build.gradle b/build.gradle
index 78734cf..ae2ed8a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,8 +6,8 @@ buildscript {
         }
     }
     dependencies {
-        classpath 'com.github.jengelman.gradle.plugins:shadow:1.2.0'
-        classpath 'gradle.plugin.edu.sc.seis.gradle:launch4j:1.6.1'
+        classpath 'com.github.jengelman.gradle.plugins:shadow:4.0.2'
+        classpath 'gradle.plugin.edu.sc.seis.gradle:launch4j:2.4.4'
     }
 }
 
@@ -15,26 +15,25 @@ apply plugin: 'java'
 apply plugin: 'edu.sc.seis.launch4j'
 apply plugin: 'com.github.johnrengelman.shadow'
 
-// launch4j dependsOn doesn't work
-defaultTasks 'prepareManifest', 'build', 'launch4j', 'gather'
+defaultTasks 'prepareManifest', 'build', 'createExe', 'gather'
 
 
 group               = 'com.mumfrey'
 ext.revision        = project.verRevision == "0" ? "" : ".${project.verRevision}"
-version             = "${project.verMajor}.${project.verMinor}${project.revision}${project.verRelease}"
+version             = "${project.verMajor}.${project.verMinor}${project.revision}-${project.verRelease}"
 ext.mcversion       = "${project.verMajor}.${project.verMinor}${project.revision}"
 ext.msversion       =  "${project.verMajor}.${project.verMinor}.${project.verRevision}.${project.verBuild}"
 archivesBaseName    = 'liteloader-installer'
-targetCompatibility = '1.6'
-sourceCompatibility = '1.6'
+targetCompatibility = JavaVersion.VERSION_1_6
+sourceCompatibility = JavaVersion.VERSION_1_6
 
 repositories {
     mavenCentral()
 }
 
 dependencies {
-    compile 'com.google.guava:guava:17.0'
-    compile 'net.sourceforge.argo:argo:3.7'
+    compile 'com.google.guava:guava:21.0'
+    compile 'net.sourceforge.argo:argo:4.6'
 }
 
 // resolve problem with shadowJar
@@ -56,30 +55,32 @@ shadowJar {
 }
 
 task prepareManifest(type: Copy) {
-    from 'launch4j/liteloader_installer_manifest.xml'
-    into tasks.launch4j.temporaryDir
+    from 'createExe/liteloader_installer_manifest.xml'
+    into tasks.createExe.temporaryDir
     expand(
         artefact:  project.sxsname,
         msversion: project.msversion
     )
 }
 
-launch4j {
+createExe {
+    dependsOn 'prepareManifest'
+
     copyConfigurable = project.tasks.shadowJar.outputs.files
-    jar              = 'lib/' + project.tasks.shadowJar.archiveName
-    icon             = "${projectDir}/launch4j/liteloader_installer_icon.ico"
-    manifest         = "${tasks.launch4j.temporaryDir}/liteloader_installer_manifest.xml"
+    jar              = "lib/${project.tasks.shadowJar.archiveName}"
+    icon             = "${projectDir}/createExe/liteloader_installer_icon.ico"
+    manifest         = "${tasks.createExe.temporaryDir}/liteloader_installer_manifest.xml"
     outfile          = tasks.shadowJar.archiveName - ".jar" + ".exe"
     version          = project.msversion
     internalName     = project.sxsname
     productName      = "LiteLoader"
-    description      = "LiteLoader Installer for Minecraft ${project.mcversion} release {project.verRelease}"
-    copyright        = "Copyright (C) 2013-15 Adam Mummery-Smith"
+    fileDescription  = "LiteLoader Installer for Minecraft ${project.mcversion} - Release ${project.verRelease}"
+    copyright        = "Copyright (C) 2013-2018 Adam Mummery-Smith"
 }
 
 task gather(type: Copy) {
-    dependsOn 'launch4j'
-    from 'build/launch4j/' + launch4j.outfile
+    dependsOn 'createExe'
+    from "build/launch4j/${createExe.outfile}"
     into 'build/libs/'
 }
 
diff --git a/launch4j/liteloader_installer_icon.ico b/createExe/liteloader_installer_icon.ico
similarity index 100%
rename from launch4j/liteloader_installer_icon.ico
rename to createExe/liteloader_installer_icon.ico
diff --git a/launch4j/liteloader_installer_manifest.xml b/createExe/liteloader_installer_manifest.xml
similarity index 100%
rename from launch4j/liteloader_installer_manifest.xml
rename to createExe/liteloader_installer_manifest.xml
diff --git a/gradle.properties b/gradle.properties
index 964bcab..1918634 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -8,6 +8,6 @@ organization=Mumfrey
 verMajor=1
 verMinor=12
 verRevision=2
-verRelease=-00
+verRelease=00
 verBuild=0
 upstreamJar="${x.projectDir}/../LiteLoader/build/libs/liteloader-${x.mcversion}-SNAPSHOT-release.jar"
\ No newline at end of file
diff --git a/src/main/java/com/mumfrey/liteloader/installer/VersionInfo.java b/src/main/java/com/mumfrey/liteloader/installer/VersionInfo.java
index 0c3ebbf..e4d2a19 100644
--- a/src/main/java/com/mumfrey/liteloader/installer/VersionInfo.java
+++ b/src/main/java/com/mumfrey/liteloader/installer/VersionInfo.java
@@ -15,12 +15,11 @@
 
 import argo.jdom.JdomParser;
 import argo.jdom.JsonNode;
-import argo.jdom.JsonRootNode;
 
 public class VersionInfo
 {
     public static final VersionInfo INSTANCE = new VersionInfo();
-    public final JsonRootNode versionData;
+    public final JsonNode versionData;
 
     public VersionInfo()
     {
diff --git a/src/main/java/com/mumfrey/liteloader/installer/actions/ClientAction.java b/src/main/java/com/mumfrey/liteloader/installer/actions/ClientAction.java
index 3899469..7f04577 100644
--- a/src/main/java/com/mumfrey/liteloader/installer/actions/ClientAction.java
+++ b/src/main/java/com/mumfrey/liteloader/installer/actions/ClientAction.java
@@ -82,8 +82,7 @@ protected boolean extractLibraries(File target, IInstallerMonitor monitor) throw
     {
         File libraries = new File(target, "libraries");
         File targetLibraryFile = VersionInfo.getLibraryPath(libraries);
-        if (!this.extractLibrary(targetLibraryFile, VersionInfo.getContainedFile())) return false;
-        return true;
+        return this.extractLibrary(targetLibraryFile, VersionInfo.getContainedFile());
     }
     
     protected final boolean extractLibrary(File targetLibraryFile, String containedFile) throws HeadlessException
diff --git a/src/main/java/com/mumfrey/liteloader/installer/actions/ClientInstallAction.java b/src/main/java/com/mumfrey/liteloader/installer/actions/ClientInstallAction.java
index 47407be..4be52bb 100644
--- a/src/main/java/com/mumfrey/liteloader/installer/actions/ClientInstallAction.java
+++ b/src/main/java/com/mumfrey/liteloader/installer/actions/ClientInstallAction.java
@@ -31,7 +31,6 @@
 import argo.jdom.JsonField;
 import argo.jdom.JsonNode;
 import argo.jdom.JsonNodeFactories;
-import argo.jdom.JsonRootNode;
 import argo.jdom.JsonStringNode;
 import argo.saj.InvalidSyntaxException;
 
@@ -246,7 +245,7 @@ public final boolean run(File target, List<InstallationModifier> modifiers, IIns
 
             if (!this.writeVersionFile(modifiers, versionTarget)) return false;
 
-            JsonRootNode jsonProfileData = this.readLauncherProfiles(launcherProfiles);
+            JsonNode jsonProfileData = this.readLauncherProfiles(launcherProfiles);
             if (jsonProfileData == null) return false;
 
             HashMap<JsonStringNode, JsonNode> modifiedData = this.modifyProfileData(target, jsonProfileData, modifiers);
@@ -310,7 +309,7 @@ private File prepareVersionDir(File target) throws HeadlessException
     private boolean writeVersionFile(List<InstallationModifier> modifiers, File versionTarget) throws HeadlessException
     {
         File versionJsonFile = new File(versionTarget, this.getVersion() + ".json");
-        JsonRootNode versionJson = JsonNodeFactories.object(VersionInfo.getVersionInfo().getFields());
+        JsonNode versionJson = JsonNodeFactories.object(VersionInfo.getVersionInfo().getFields());
 
         try
         {
@@ -335,10 +334,10 @@ private boolean writeVersionFile(List<InstallationModifier> modifiers, File vers
         return true;
     }
     
-    private JsonRootNode readLauncherProfiles(File launcherProfiles) throws HeadlessException, RuntimeException
+    private JsonNode readLauncherProfiles(File launcherProfiles) throws RuntimeException
     {
         JdomParser parser = new JdomParser();
-        JsonRootNode jsonProfileData;
+        JsonNode jsonProfileData;
 
         try
         {
@@ -354,12 +353,12 @@ private JsonRootNode readLauncherProfiles(File launcherProfiles) throws Headless
         }
         catch (Exception e)
         {
-            throw Throwables.propagate(e);
+            throw new RuntimeException(e);
         }
         return jsonProfileData;
     }
     
-    private HashMap<JsonStringNode, JsonNode> modifyProfileData(File target, JsonRootNode jsonProfileData, List<InstallationModifier> modifiers)
+    private HashMap<JsonStringNode, JsonNode> modifyProfileData(File target, JsonNode jsonProfileData, List<InstallationModifier> modifiers)
     {
         Set<String> jvmArgs = new LinkedHashSet<String>();
         List<InstallationModifier> allModifiers = Collections.unmodifiableList(modifiers);
@@ -400,13 +399,13 @@ private HashMap<JsonStringNode, JsonNode> modifyProfileData(File target, JsonRoo
         }
 
         profileCopy.put(JsonNodeFactories.string(this.getProfileName()), JsonNodeFactories.object(fields));
-        JsonRootNode profileJsonCopy = JsonNodeFactories.object(profileCopy);
+        JsonNode profileJsonCopy = JsonNodeFactories.object(profileCopy);
         modifiedData.put(JsonNodeFactories.string("profiles"), profileJsonCopy);
 
         return modifiedData;
     }
     
-    private boolean writeLauncherProfiles(JsonRootNode jsonProfileData, File launcherProfiles) throws HeadlessException
+    private boolean writeLauncherProfiles(JsonNode jsonProfileData, File launcherProfiles) throws HeadlessException
     {
         try
         {
diff --git a/src/main/java/com/mumfrey/liteloader/installer/modifiers/CascadeModifier.java b/src/main/java/com/mumfrey/liteloader/installer/modifiers/CascadeModifier.java
index a99ef6f..d7bf77a 100644
--- a/src/main/java/com/mumfrey/liteloader/installer/modifiers/CascadeModifier.java
+++ b/src/main/java/com/mumfrey/liteloader/installer/modifiers/CascadeModifier.java
@@ -17,7 +17,6 @@
 import argo.jdom.JsonField;
 import argo.jdom.JsonNode;
 import argo.jdom.JsonNodeFactories;
-import argo.jdom.JsonRootNode;
 import argo.jdom.JsonStringNode;
 
 public abstract class CascadeModifier implements ActionModifier
@@ -35,7 +34,7 @@ public abstract class CascadeModifier implements ActionModifier
     protected Map<String, List<JsonNode>> validVersionLibraries = new HashMap<String, List<JsonNode>>();
 
     @Override
-    public JsonRootNode modifyVersion(JsonRootNode versionJson)
+    public JsonNode modifyVersion(JsonNode versionJson)
     {
         String tweakClass = this.getTweakClass();
 
diff --git a/src/main/java/com/mumfrey/liteloader/installer/modifiers/InstallationModifier.java b/src/main/java/com/mumfrey/liteloader/installer/modifiers/InstallationModifier.java
index e754cc8..0268a86 100644
--- a/src/main/java/com/mumfrey/liteloader/installer/modifiers/InstallationModifier.java
+++ b/src/main/java/com/mumfrey/liteloader/installer/modifiers/InstallationModifier.java
@@ -4,13 +4,13 @@
 import java.util.Set;
 
 import argo.jdom.JsonField;
-import argo.jdom.JsonRootNode;
+import argo.jdom.JsonNode;
 
 public interface InstallationModifier
 {
     public abstract String getExclusivityKey();
 
-    public abstract JsonRootNode modifyVersion(JsonRootNode versionJson);
+    public abstract JsonNode modifyVersion(JsonNode versionJson);
 
     public abstract void modifyFields(List<JsonField> fields);
 
diff --git a/src/main/java/com/mumfrey/liteloader/installer/modifiers/InstallerModifier.java b/src/main/java/com/mumfrey/liteloader/installer/modifiers/InstallerModifier.java
index 1c9882e..6f6b9c3 100644
--- a/src/main/java/com/mumfrey/liteloader/installer/modifiers/InstallerModifier.java
+++ b/src/main/java/com/mumfrey/liteloader/installer/modifiers/InstallerModifier.java
@@ -9,7 +9,6 @@
 
 import argo.jdom.JdomParser;
 import argo.jdom.JsonNode;
-import argo.jdom.JsonRootNode;
 
 import com.google.common.base.Throwables;
 
@@ -94,7 +93,7 @@ private static Map<String, List<JsonNode>> readVersionLibraries(File targetDir)
                         try
                         {
                             JdomParser parser = new JdomParser();
-                            JsonRootNode json = parser.parse(new FileReader(versionJson));
+                            JsonNode json = parser.parse(new FileReader(versionJson));
                             List<JsonNode> libraries = json.getArrayNode("libraries");
                             for (JsonNode library : libraries)
                             {
diff --git a/src/main/java/com/mumfrey/liteloader/installer/targets/TargetVersion.java b/src/main/java/com/mumfrey/liteloader/installer/targets/TargetVersion.java
index 7df54d2..f08c11c 100644
--- a/src/main/java/com/mumfrey/liteloader/installer/targets/TargetVersion.java
+++ b/src/main/java/com/mumfrey/liteloader/installer/targets/TargetVersion.java
@@ -1,7 +1,6 @@
 package com.mumfrey.liteloader.installer.targets;
 
 import java.io.File;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
@@ -13,8 +12,8 @@
 
 import argo.jdom.JdomParser;
 import argo.jdom.JsonField;
+import argo.jdom.JsonNode;
 import argo.jdom.JsonNodeFactories;
-import argo.jdom.JsonRootNode;
 import argo.jdom.JsonStringNode;
 import argo.saj.InvalidSyntaxException;
 
@@ -37,7 +36,7 @@ public class TargetVersion implements InstallationModifier
     private final ActionModifier modifier;
     private String minecraftArguments;
 
-    public TargetVersion(File file) throws IllegalArgumentException, FileNotFoundException, IOException, InvalidSyntaxException
+    public TargetVersion(File file) throws IllegalArgumentException, IOException, InvalidSyntaxException
     {
         if (!file.isDirectory())
         {
@@ -51,7 +50,7 @@ public TargetVersion(File file) throws IllegalArgumentException, FileNotFoundExc
             throw new IllegalArgumentException("Version json file not found reading: " + json.getAbsolutePath());
         }
 
-        JsonRootNode versionData = new JdomParser().parse(Files.newReader(json, Charsets.UTF_8));
+        JsonNode versionData = new JdomParser().parse(Files.newReader(json, Charsets.UTF_8));
         String versionId = versionData.getStringValue("id");
         if (versionId == null || !versionId.equals(name))
         {
@@ -93,7 +92,7 @@ public String getExclusivityKey()
     }
 
     @Override
-    public JsonRootNode modifyVersion(JsonRootNode versionJson)
+    public JsonNode modifyVersion(JsonNode versionJson)
     {
         try
         {
@@ -231,7 +230,7 @@ private String guessVersion(Pattern pattern)
      * @param versionData
      * @return
      */
-    private static String getMinecraftArguments(JsonRootNode versionData)
+    private static String getMinecraftArguments(JsonNode versionData)
     {
         String minecraftArguments = versionData.getStringValue("minecraftArguments");
         if (minecraftArguments != null)