diff --git a/CSharp/Libraries/UniversalEditor.Compression/Modules/LZRW1/LZRW1CompressionModule.cs b/CSharp/Libraries/UniversalEditor.Compression/Modules/LZRW1/LZRW1CompressionModule.cs
new file mode 100644
index 00000000..a9dabd7e
--- /dev/null
+++ b/CSharp/Libraries/UniversalEditor.Compression/Modules/LZRW1/LZRW1CompressionModule.cs
@@ -0,0 +1,89 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace UniversalEditor.Compression.Modules.LZRW1
+{
+    public class LZRW1CompressionModule : CompressionModule
+    {
+        /// <summary>
+        /// Number of bytes used by copy flag
+        /// </summary>
+        private const byte FLAG_BYTES = 0x04;
+
+        private const byte FLAG_COMPRESS = 0x00;
+        private const byte FLAG_COPY = 0x01;
+
+        public static byte[] Decompress(byte[] input)
+        {
+            byte[] output = null;
+
+            if (input[0] == FLAG_COPY)
+            {
+                output = new byte[input.Length - FLAG_BYTES];
+                Array.Copy(input, FLAG_BYTES, output, 0, input.Length - FLAG_BYTES);
+            }
+            else
+            {
+                ushort controlbits = 0, control = 0;
+                int p_src = FLAG_BYTES;
+
+				Accessors.MemoryAccessor ma = new Accessors.MemoryAccessor();
+                IO.Writer bw = new IO.Writer(ma);
+
+                while (p_src != input.Length)
+                {
+                    if (controlbits == 0)
+                    {
+                        control = input[p_src++];
+                        control |= (ushort)(input[p_src] << 8);
+                        controlbits = 16;
+                    }
+                    if ((control & 1) != 0)
+                    {
+                        ushort offset, len;
+                        int p;
+                        offset = (ushort)((input[p_src] & 0xF0) << 4);
+                        len = (ushort)(1 + (input[p_src++] & 0xF));
+                        offset += (ushort)(input[p_src++] & 0xFF);
+
+                        bw.Flush();
+                        byte[] out1 = ma.ToArray();
+
+                        p = out1.Length - offset;
+                        while (len-- != 0)
+                        {
+                            bw.WriteByte(out1[p++]);
+                        }
+                    }
+                    else
+                    {
+						bw.WriteByte(input[p_src++]);
+                    }
+                    control >>= 1;
+                    controlbits--;
+                }
+                bw.Flush();
+                bw.Close();
+                output = ma.ToArray();
+            }
+            return output;
+        }
+
+        public override string Name
+        {
+            get { return "LZRW1"; }
+        }
+
+        protected override void CompressInternal(System.IO.Stream inputStream, System.IO.Stream outputStream)
+        {
+            throw new NotImplementedException();
+        }
+
+        protected override void DecompressInternal(System.IO.Stream inputStream, System.IO.Stream outputStream, int inputLength, int outputLength)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/CSharp/Libraries/UniversalEditor.Compression/UniversalEditor.Compression.csproj b/CSharp/Libraries/UniversalEditor.Compression/UniversalEditor.Compression.csproj
index 82281723..b856f650 100644
--- a/CSharp/Libraries/UniversalEditor.Compression/UniversalEditor.Compression.csproj
+++ b/CSharp/Libraries/UniversalEditor.Compression/UniversalEditor.Compression.csproj
@@ -63,7 +63,7 @@
     <Compile Include="LZH\LZHStream.cs" />
     <Compile Include="LZMA\LZMAStream.cs" />
     <Compile Include="LZPL2\LZPL2CompressionModule.cs" />
-    <Compile Include="LZRW1\LZRW1CompressionModule.cs" />
+    <Compile Include="Modules\LZRW1\LZRW1CompressionModule.cs" />
     <Compile Include="LZSS\LZSS2.cs" />
     <Compile Include="LZSS\LZSSCompressionModule.cs" />
     <Compile Include="LZW\Internal\Element.cs" />