diff --git a/src/java/com/threerings/resource/DownloadManager.java b/src/java/com/threerings/resource/DownloadManager.java
index d3a9b53de..64fdc9352 100644
--- a/src/java/com/threerings/resource/DownloadManager.java
+++ b/src/java/com/threerings/resource/DownloadManager.java
@@ -1,5 +1,5 @@
 //
-// $Id: DownloadManager.java,v 1.8 2003/08/05 01:33:20 mdb Exp $
+// $Id: DownloadManager.java,v 1.9 2003/08/05 07:03:33 mdb Exp $
 
 package com.threerings.resource;
 
@@ -257,6 +257,7 @@ public class DownloadManager
         }
 
         Log.info("Initiating download of " + pinfo.totalSize + " bytes.");
+
         // download all stale files
         size = fetch.size();
         pinfo.start = System.currentTimeMillis();
@@ -272,6 +273,19 @@ public class DownloadManager
             }
         }
 
+        // now go through and do the post-download phase
+        for (int ii = 0; ii < size; ii++) {
+            Downloader loader = (Downloader)fetch.get(ii);
+            try {
+                loader.postDownload(this, obs, pinfo);
+            } catch (IOException ioe) {
+                notifyFailed(obs, loader.getDescriptor(), ioe);
+                if (fragile) {
+                    return;
+                }
+            }
+        }
+
         // make sure to always let the observer know that we've wrapped up
         // by reporting 100% completion
         notifyProgress(obs, 100, 0L);
diff --git a/src/java/com/threerings/resource/Downloader.java b/src/java/com/threerings/resource/Downloader.java
index 3040f17ec..1b090c158 100644
--- a/src/java/com/threerings/resource/Downloader.java
+++ b/src/java/com/threerings/resource/Downloader.java
@@ -1,5 +1,5 @@
 //
-// $Id: Downloader.java,v 1.1 2003/08/05 01:33:20 mdb Exp $
+// $Id: Downloader.java,v 1.2 2003/08/05 07:03:34 mdb Exp $
 
 package com.threerings.resource;
 
@@ -87,6 +87,17 @@ public abstract class Downloader
         }
     }
 
+    /**
+     * Called after the download phase has completed to allow patching or
+     * other post-download activities.
+     */
+    public void postDownload (DownloadManager dmgr, DownloadObserver obs,
+                              ProgressInfo pinfo)
+        throws IOException
+    {
+        // nothing to do by default
+    }
+
     /**
      * Downloads the content from the supplied URL connection into the
      * specified destination file, informing the supplied download manager
diff --git a/src/java/com/threerings/resource/JNLPDownloader.java b/src/java/com/threerings/resource/JNLPDownloader.java
index 4d3a8c92e..c48e02ec5 100644
--- a/src/java/com/threerings/resource/JNLPDownloader.java
+++ b/src/java/com/threerings/resource/JNLPDownloader.java
@@ -1,5 +1,5 @@
 //
-// $Id: JNLPDownloader.java,v 1.2 2003/08/05 06:54:01 mdb Exp $
+// $Id: JNLPDownloader.java,v 1.3 2003/08/05 07:03:34 mdb Exp $
 
 package com.threerings.resource;
 
@@ -89,9 +89,7 @@ public class JNLPDownloader extends Downloader
         return true;
     }
 
-    /**
-     * Processes a single download descriptor.
-     */
+    // documentation inherited
     public void processDownload (DownloadManager dmgr, DownloadObserver obs,
                                  ProgressInfo pinfo, byte[] buffer)
         throws IOException
@@ -115,6 +113,18 @@ public class JNLPDownloader extends Downloader
             _patchFile = new File(mungePath(_desc.destFile, ".diff"));
             downloadContent(dmgr, obs, pinfo, buffer, ucon, _patchFile);
 
+        } else {
+            Log.info("Downloading whole jar [url=" + rsrcURL + "].");
+            downloadContent(dmgr, obs, pinfo, buffer, ucon, _desc.destFile);
+        }
+    }
+
+    // documentation inherited
+    public void postDownload (DownloadManager dmgr, DownloadObserver obs,
+                              ProgressInfo pinfo)
+        throws IOException
+    {
+        if (_patchFile != null) {
             // move the old jar out of the way
             File oldDest = new File(_desc.destFile.getPath() + ".old");
             if (!_desc.destFile.renameTo(oldDest)) {
@@ -150,12 +160,11 @@ public class JNLPDownloader extends Downloader
                 cleanUpAndFail(ioe);
             }
 
-        } else {
-            Log.info("Downloading whole jar [url=" + rsrcURL + "].");
-            downloadContent(dmgr, obs, pinfo, buffer, ucon, _desc.destFile);
+            // clean up the old jar and the patch file
+            oldDest.delete();
+            _patchFile.delete();
         }
 
-        // now that we've patched, update our version file
         PrintWriter pout = new PrintWriter(
             new BufferedWriter(new FileWriter(_vfile)));
         pout.println(_desc.version);