diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj
index f7d9da30..7669fa33 100644
--- a/ArcFormats/ArcFormats.csproj
+++ b/ArcFormats/ArcFormats.csproj
@@ -112,6 +112,7 @@
     <Compile Include="RPM\WidgetARC.xaml.cs">
       <DependentUpon>WidgetARC.xaml</DependentUpon>
     </Compile>
+    <Compile Include="Silky\ArcARC.cs" />
     <Compile Include="Silky\ArcIFL.cs" />
     <Compile Include="ArcIKS.cs" />
     <Compile Include="ArcInnGrey.cs" />
diff --git a/ArcFormats/Silky/ArcARC.cs b/ArcFormats/Silky/ArcARC.cs
new file mode 100644
index 00000000..bedcb4e9
--- /dev/null
+++ b/ArcFormats/Silky/ArcARC.cs
@@ -0,0 +1,77 @@
+//! \file       ArcARC.cs
+//! \date       Mon Oct 12 12:19:46 2015
+//! \brief      Silky's ARC archive implementation.
+//
+// Copyright (C) 2015 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.Composition;
+using System.IO;
+using GameRes.Compression;
+using GameRes.Utility;
+
+namespace GameRes.Formats.Silky
+{
+    [Export(typeof(ArchiveFormat))]
+    public class ArcOpener : ArchiveFormat
+    {
+        public override string         Tag { get { return "ARC/SILKY'S"; } }
+        public override string Description { get { return "Silky's resource archive"; } }
+        public override uint     Signature { get { return 0; } }
+        public override bool  IsHierarchic { get { return false; } }
+        public override bool     CanCreate { get { return false; } }
+
+        public ArcOpener ()
+        {
+            Extensions = new string[] { "arc" };
+        }
+
+        public override ArcFile TryOpen (ArcView file)
+        {
+            int count = file.View.ReadInt32 (0);
+            if (!IsSaneCount (count))
+                return null;
+            long index_offset = 4;
+            const int name_length = 0x20;
+            uint index_size = (uint)(count * (name_length + 8));
+            if (index_size > file.View.Reserve (index_offset, index_size))
+                return null;
+            var dir = new List<Entry>();
+            for (int i = 0; i < count; ++i)
+            {
+                string name = file.View.ReadString (index_offset, (uint)name_length);
+                if (0 == name.Length)
+                    return null;
+                index_offset += name_length;
+                var entry = FormatCatalog.Instance.Create<Entry> (name);
+                entry.Offset = file.View.ReadUInt32 (index_offset);
+                entry.Size   = file.View.ReadUInt32 (index_offset+4);
+                if (entry.Offset < index_size+4 || !entry.CheckPlacement (file.MaxOffset))
+                    return null;
+                dir.Add (entry);
+                index_offset += 8;
+            }
+            return new ArcFile (file, this, dir);
+        }
+    }
+}
diff --git a/ArcFormats/elf/ArcAi5Win.cs b/ArcFormats/elf/ArcAi5Win.cs
index eeec60ea..a4470935 100644
--- a/ArcFormats/elf/ArcAi5Win.cs
+++ b/ArcFormats/elf/ArcAi5Win.cs
@@ -165,47 +165,4 @@ namespace GameRes.Formats.Elf
         }
         */
     }
-
-    [Export(typeof(ArchiveFormat))]
-    public class ArcOpener : ArchiveFormat
-    {
-        public override string         Tag { get { return "ARC/SILKY'S"; } }
-        public override string Description { get { return "Silky's AI resource archive"; } }
-        public override uint     Signature { get { return 0; } }
-        public override bool  IsHierarchic { get { return false; } }
-        public override bool     CanCreate { get { return false; } }
-
-        public ArcOpener ()
-        {
-            Extensions = new string[] { "arc" };
-        }
-
-        public override ArcFile TryOpen (ArcView file)
-        {
-            int count = file.View.ReadInt32 (0);
-            if (!IsSaneCount (count))
-                return null;
-            long index_offset = 4;
-            const int name_length = 0x20;
-            uint index_size = (uint)(count * (name_length + 8));
-            if (index_size > file.View.Reserve (index_offset, index_size))
-                return null;
-            var dir = new List<Entry>();
-            for (int i = 0; i < count; ++i)
-            {
-                string name = file.View.ReadString (index_offset, (uint)name_length);
-                if (0 == name.Length)
-                    return null;
-                index_offset += name_length;
-                var entry = FormatCatalog.Instance.Create<Entry> (name);
-                entry.Offset = file.View.ReadUInt32 (index_offset);
-                entry.Size   = file.View.ReadUInt32 (index_offset+4);
-                if (entry.Offset < index_size+4 || !entry.CheckPlacement (file.MaxOffset))
-                    return null;
-                dir.Add (entry);
-                index_offset += 8;
-            }
-            return new ArcFile (file, this, dir);
-        }
-    }
 }