diff --git a/common/cpw/mods/fml/common/asm/FMLSanityChecker.java b/common/cpw/mods/fml/common/asm/FMLSanityChecker.java
index be657fe551..9e806ec338 100644
--- a/common/cpw/mods/fml/common/asm/FMLSanityChecker.java
+++ b/common/cpw/mods/fml/common/asm/FMLSanityChecker.java
@@ -5,7 +5,7 @@
  * are made available under the terms of the GNU Lesser Public License v2.1
  * which accompanies this distribution, and is available at
  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- * 
+ *
  * Contributors:
  *     cpw - implementation
  */
diff --git a/common/cpw/mods/fml/common/asm/transformers/deobf/FMLDeobfuscatingRemapper.java b/common/cpw/mods/fml/common/asm/transformers/deobf/FMLDeobfuscatingRemapper.java
index 401c3e63b3..5fee9445ec 100644
--- a/common/cpw/mods/fml/common/asm/transformers/deobf/FMLDeobfuscatingRemapper.java
+++ b/common/cpw/mods/fml/common/asm/transformers/deobf/FMLDeobfuscatingRemapper.java
@@ -76,6 +76,7 @@ public class FMLDeobfuscatingRemapper extends Remapper {
         {
             File libDir = new File(mcDir, "lib");
             File mapData = new File(libDir, deobfFileName);
+            mapData = mapData.getCanonicalFile();
             ZipFile mapZip = new ZipFile(mapData);
             ZipEntry classData = mapZip.getEntry("joined.srg");
             ZipInputSupplier zis = new ZipInputSupplier(mapZip, classData);
diff --git a/common/cpw/mods/fml/relauncher/FMLRelauncher.java b/common/cpw/mods/fml/relauncher/FMLRelauncher.java
index e0df83f750..3fe3fe7b5d 100644
--- a/common/cpw/mods/fml/relauncher/FMLRelauncher.java
+++ b/common/cpw/mods/fml/relauncher/FMLRelauncher.java
@@ -5,7 +5,7 @@
  * are made available under the terms of the GNU Lesser Public License v2.1
  * which accompanies this distribution, and is available at
  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- * 
+ *
  * Contributors:
  *     cpw - implementation
  */
@@ -230,7 +230,6 @@ public class FMLRelauncher
     {
         showWindow(true);
 
-        appletClass = ReflectionHelper.getClass(classLoader, "net.minecraft.client.MinecraftApplet");
         if (minecraftApplet.getClass().getClassLoader() == classLoader)
         {
             if (popupWindow != null)
@@ -241,6 +240,7 @@ public class FMLRelauncher
             try
             {
                 newApplet = minecraftApplet;
+                appletClass = ReflectionHelper.getClass(classLoader, "net.minecraft.client.MinecraftApplet");
                 ReflectionHelper.findMethod(appletClass, newApplet, new String[] { "fmlInitReentry" }).invoke(newApplet);
                 return;
             }
@@ -260,6 +260,7 @@ public class FMLRelauncher
 
         try
         {
+            appletClass = ReflectionHelper.getClass(classLoader, "net.minecraft.client.MinecraftApplet");
             newApplet = appletClass.newInstance();
             Object appletContainer = ReflectionHelper.getPrivateValue(ReflectionHelper.getClass(getClass().getClassLoader(), "java.awt.Component"),
                     minecraftApplet, "parent");
diff --git a/common/cpw/mods/fml/relauncher/RelaunchLibraryManager.java b/common/cpw/mods/fml/relauncher/RelaunchLibraryManager.java
index cd45223cb6..178f354ed0 100644
--- a/common/cpw/mods/fml/relauncher/RelaunchLibraryManager.java
+++ b/common/cpw/mods/fml/relauncher/RelaunchLibraryManager.java
@@ -292,7 +292,9 @@ public class RelaunchLibraryManager
                 {
                     IFMLCallHook call = (IFMLCallHook) Class.forName(setupClass, true, actualClassLoader).newInstance();
                     Map<String,Object> callData = new HashMap<String, Object>();
+                    callData.put("mcLocation", mcDir);
                     callData.put("classLoader", actualClassLoader);
+                    callData.put("coremodLocation", pluginLocations.get(plugin));
                     callData.put("deobfuscationFileName", FMLInjectionData.debfuscationDataName());
                     call.injectData(callData);
                     call.call();