--- a/org/gudy/azureus2/pluginsimpl/local/PluginInitializer.java
+++ b/org/gudy/azureus2/pluginsimpl/local/PluginInitializer.java
@@ -130,18 +130,6 @@ PluginInitializer
 					"Magnet URI Handler",
 					"true",
 					"false"},
-			{	 PluginManagerDefaults.PID_CORE_UPDATE_CHECKER, 
-   					"org.gudy.azureus2.update.CoreUpdateChecker", 
-   					"azbpcoreupdater", 
-   					"CoreUpdater",
-					"true",
-					"true"},
-			{	 PluginManagerDefaults.PID_CORE_PATCH_CHECKER, 
-   					"org.gudy.azureus2.update.CorePatchChecker", 
-   					"azbpcorepatcher", 
-   					"CorePatcher",
-					"true",
-					"true"},
 	   		{	 PluginManagerDefaults.PID_PLATFORM_CHECKER, 
    					"org.gudy.azureus2.platform.PlatformManagerPluginDelegate", 
    					"azplatform2", 
--- a/org/gudy/azureus2/pluginsimpl/update/PluginUpdatePlugin.java
+++ b/org/gudy/azureus2/pluginsimpl/update/PluginUpdatePlugin.java
@@ -562,6 +562,10 @@ PluginUpdatePlugin
 					}
 				}
 				
+				if ( pi.getPluginState().isShared()) {
+					continue;
+				}
+
 				String	mand = pi.getPluginProperties().getProperty( "plugin.mandatory");
 				
 				boolean	pi_mandatory = mand != null && mand.trim().toLowerCase().equals("true");
--- a/org/gudy/azureus2/ui/swt/updater2/SWTUpdateChecker.java
+++ b/org/gudy/azureus2/ui/swt/updater2/SWTUpdateChecker.java
@@ -64,7 +64,7 @@ public class SWTUpdateChecker implements UpdatableComponent
   public static void
   initialize()
   {
-  	PluginInitializer.getDefaultInterface().getUpdateManager().registerUpdatableComponent(new SWTUpdateChecker(),true);
+//  	PluginInitializer.getDefaultInterface().getUpdateManager().registerUpdatableComponent(new SWTUpdateChecker(),true);
   }
   
   public SWTUpdateChecker() {