diff --git a/installer.nsi b/installer.nsi
index c3bb2523b..3187968eb 100644
--- a/installer.nsi
+++ b/installer.nsi
@@ -508,6 +508,10 @@ Section "$(STRING_ADD_CONTEXT_MENU)" SecContextMenu
     Call AddToExtContextMenu
     Push "gfx"
     Call AddToExtContextMenu
+    Push "swt"
+    Call AddToExtContextMenu
+    Push "swc"
+    Call AddToExtContextMenu
     
     SetRegView 32
     Push "swf"
@@ -516,6 +520,10 @@ Section "$(STRING_ADD_CONTEXT_MENU)" SecContextMenu
     Call AddToExtContextMenu    
     Push "gfx"
     Call AddToExtContextMenu
+    Push "swt"
+    Call AddToExtContextMenu
+    Push "swc"
+    Call AddToExtContextMenu
     
     ${NotifyShell_AssocChanged}
 SectionEnd
@@ -584,6 +592,10 @@ Section "Uninstall"
   Call un.RemoveExtContextMenu
   Push "gfx"
   Call un.RemoveExtContextMenu
+  Push "swt"
+  Call un.RemoveExtContextMenu
+  Push "swc"
+  Call un.RemoveExtContextMenu
   
   SetRegView 32
   Push "swf"
@@ -592,6 +604,10 @@ Section "Uninstall"
   Call un.RemoveExtContextMenu
   Push "gfx"
   Call un.RemoveExtContextMenu
+  Push "swt"
+  Call un.RemoveExtContextMenu
+  Push "swc"
+  Call un.RemoveExtContextMenu
 
   ${NotifyShell_AssocChanged}
   
diff --git a/src/com/jpexs/decompiler/flash/console/ContextMenuTools.java b/src/com/jpexs/decompiler/flash/console/ContextMenuTools.java
index 868ce2d3f..fe9a59663 100644
--- a/src/com/jpexs/decompiler/flash/console/ContextMenuTools.java
+++ b/src/com/jpexs/decompiler/flash/console/ContextMenuTools.java
@@ -81,7 +81,7 @@ public class ContextMenuTools {
     }
 
     private static boolean addToContextMenu(boolean add, boolean fromCommandLine, String exeName) {
-        final String[] extensions = new String[]{"swf", "spl", "gfx", "swt"};
+        final String[] extensions = new String[]{"swf", "spl", "gfx", "swt", "swc"};
 
         final WinReg.HKEY REG_CLASSES_HKEY = WinReg.HKEY_LOCAL_MACHINE;
         final String REG_CLASSES_PATH = "Software\\Classes\\";