diff --git a/app/views/dmsf_upload/_multi_upload.html.erb b/app/views/dmsf_upload/_multi_upload.html.erb
index 30212712..d7e1877d 100644
--- a/app/views/dmsf_upload/_multi_upload.html.erb
+++ b/app/views/dmsf_upload/_multi_upload.html.erb
@@ -50,7 +50,6 @@
   max_file_size = "#{@ajax_upload_size}mb"
   max_file_count = Setting.plugin_redmine_dmsf['dmsf_max_file_upload'].to_i if Setting.plugin_redmine_dmsf['dmsf_max_file_upload'].to_i > 0
   flash_url = plugin_asset_path(:redmine_dmsf, 'javascripts', 'plupload/js/Moxie.swf')
-  silver_light_url = plugin_asset_path(:redmine_dmsf, 'javascripts', 'plupload/js/Moxie.xap')
 %>
 
 <%= late_javascript_tag do %>
@@ -67,8 +66,7 @@
         '<%= form_url %>',
         '<%= max_file_size %>',
         '<%= max_file_count %>',
-        '<%= flash_url %>',
-        '<%= silver_light_url %>'
+        '<%= flash_url %>'
       );
     }
   });
@@ -77,8 +75,7 @@
     '<%= form_url %>',
     '<%= max_file_size %>',
     '<%= max_file_count %>',
-    '<%= flash_url %>',
-    '<%= silver_light_url %>'
+    '<%= flash_url %>'
   );
   window.dmsfFileFieldCount = 1;
 <% end %>
diff --git a/assets/javascripts/redmine_dmsf.js b/assets/javascripts/redmine_dmsf.js
index ed2d35da..75afd042 100644
--- a/assets/javascripts/redmine_dmsf.js
+++ b/assets/javascripts/redmine_dmsf.js
@@ -156,11 +156,11 @@ function dmsfExpandRows(EL, parentRow, url) {
 }
 
 /* Plupload */
-function initPlUploader(uploader, formUrl, maxFileSize, maxFileCount, flashUrl, silverLightUrl) {
+function initPlUploader(uploader, formUrl, maxFileSize, maxFileCount, flashUrl) {
     uploader.html('<div></div>');
     uploader = $('div', uploader);
     uploader.plupload({
-        runtimes : 'html5,flash,silverlight,html4',
+        runtimes : 'html5,flash,html4',
         url : formUrl,
         max_file_size : maxFileSize,
         max_file_count: maxFileCount,
@@ -177,9 +177,7 @@ function initPlUploader(uploader, formUrl, maxFileSize, maxFileCount, flashUrl,
             active: 'thumbs'
         },
         // Flash settings
-        flash_swf_url : flashUrl,
-        // Silverlight settings
-        silverlight_xap_url : silverLightUrl
+        flash_swf_url : flashUrl
     });
     $('.plupload_scroll', uploader).resizable({
         handles: 's'