diff --git a/adler32.cs b/adler32.cs
deleted file mode 100644
index b677c0c0..00000000
--- a/adler32.cs
+++ /dev/null
@@ -1,146 +0,0 @@
-//! \file       adler32.cs
-//! \date       Mon Jul 21 11:19:54 2014
-//! \brief      compute adler32 checksum
-//
-
-using System.IO;
-using System;
-
-class Adler
-{
-    public static void Main (string[] args)
-    {
-        if (args.Length < 1)
-            return;
-        try
-        {
-            uint adler = 1;
-            using (var input = File.Open (args[0], FileMode.Open, FileAccess.Read))
-            {
-                var buf = new byte[65536];
-                for (;;)
-                {
-                    int read = input.Read (buf, 0, buf.Length);
-                    if (0 == read)
-                        break;
-                    adler = Adler32.Update (adler, buf, 0, read);
-                }
-            }
-            Console.WriteLine ("{0} => {1:X8}", args[0], adler);
-        }
-        catch (Exception X)
-        {
-            Console.Error.WriteLine (X.Message);
-        }
-    }
-
-    public sealed class Adler32
-    {
-        const uint BASE = 65521;      /* largest prime smaller than 65536 */
-        const int  NMAX = 5552;
-
-        public static uint Compute (byte[] buf, int pos, int len)
-        {
-            return Update (1, buf, pos, len);
-        }
-
-        public static uint Update (uint adler, byte[] buf, int pos, int len)
-        {
-            /* split Adler-32 into component sums */
-            uint sum2 = (adler >> 16) & 0xffff;
-            adler &= 0xffff;
-
-            /* in case user likes doing a byte at a time, keep it fast */
-            if (1 == len) {
-                adler += buf[pos];
-                if (adler >= BASE)
-                    adler -= BASE;
-                sum2 += adler;
-                if (sum2 >= BASE)
-                    sum2 -= BASE;
-                return adler | (sum2 << 16);
-            }
-
-            /* in case short lengths are provided, keep it somewhat fast */
-            if (len < 16) {
-                while (0 != len--) {
-                    adler += buf[pos++];
-                    sum2 += adler;
-                }
-                if (adler >= BASE)
-                    adler -= BASE;
-                sum2 %= BASE;            /* only added so many BASE's */
-                return adler | (sum2 << 16);
-            }
-
-            /* do length NMAX blocks -- requires just one modulo operation */
-            while (len >= NMAX) {
-                len -= NMAX;
-                int n = NMAX / 16;          /* NMAX is divisible by 16 */
-                do {
-                    /* 16 sums unrolled */
-                    adler += buf[pos];    sum2 += adler;
-                    adler += buf[pos+1];  sum2 += adler;
-                    adler += buf[pos+2];  sum2 += adler;
-                    adler += buf[pos+3];  sum2 += adler;
-                    adler += buf[pos+4];  sum2 += adler;
-                    adler += buf[pos+5];  sum2 += adler;
-                    adler += buf[pos+6];  sum2 += adler;
-                    adler += buf[pos+7];  sum2 += adler;
-                    adler += buf[pos+8];  sum2 += adler;
-                    adler += buf[pos+9];  sum2 += adler;
-                    adler += buf[pos+10]; sum2 += adler;
-                    adler += buf[pos+11]; sum2 += adler;
-                    adler += buf[pos+12]; sum2 += adler;
-                    adler += buf[pos+13]; sum2 += adler;
-                    adler += buf[pos+14]; sum2 += adler;
-                    adler += buf[pos+15]; sum2 += adler;
-                    pos += 16;
-                } while (0 != --n);
-                adler %= BASE;
-                sum2 %= BASE;
-            }
-
-            /* do remaining bytes (less than NMAX, still just one modulo) */
-            if (0 != len) {                  /* avoid modulos if none remaining */
-                while (len >= 16) {
-                    len -= 16;
-                    adler += buf[pos];    sum2 += adler;
-                    adler += buf[pos+1];  sum2 += adler;
-                    adler += buf[pos+2];  sum2 += adler;
-                    adler += buf[pos+3];  sum2 += adler;
-                    adler += buf[pos+4];  sum2 += adler;
-                    adler += buf[pos+5];  sum2 += adler;
-                    adler += buf[pos+6];  sum2 += adler;
-                    adler += buf[pos+7];  sum2 += adler;
-                    adler += buf[pos+8];  sum2 += adler;
-                    adler += buf[pos+9];  sum2 += adler;
-                    adler += buf[pos+10]; sum2 += adler;
-                    adler += buf[pos+11]; sum2 += adler;
-                    adler += buf[pos+12]; sum2 += adler;
-                    adler += buf[pos+13]; sum2 += adler;
-                    adler += buf[pos+14]; sum2 += adler;
-                    adler += buf[pos+15]; sum2 += adler;
-                    pos += 16;
-                }
-                while (0 != len--) {
-                    adler += buf[pos++];
-                    sum2 += adler;
-                }
-                adler %= BASE;
-                sum2 %= BASE;
-            }
-
-            /* return recombined sums */
-            return adler | (sum2 << 16);
-        }
-
-        private uint m_adler = 1;
-        public  uint Value { get { return m_adler; } }
-
-        public void Update (byte[] buf, int pos, int len)
-        {
-            m_adler = Update (m_adler, buf, pos, len);
-        }
-    }
-}
diff --git a/deflate.cs b/deflate.cs
deleted file mode 100644
index 366c398b..00000000
--- a/deflate.cs
+++ /dev/null
@@ -1,32 +0,0 @@
-//! \file       deflate.cs
-//! \date       Tue Jul 08 15:01:34 2014
-//! \brief      deflate file into zlib stream.
-//
-
-using System;
-using System.IO;
-using ZLibNet;
-
-class Inflate
-{
-    public static void Main (string[] args)
-    {
-        if (args.Length != 2)
-        {
-            Console.WriteLine ("Usage: deflate INPUT-FILE OUTPUT-FILE");
-            return;
-        }
-        try
-        {
-            using (var input = File.Open (args[0], FileMode.Open, FileAccess.Read))
-            using (var output = File.Create (args[1]))
-            using (var stream = new ZLibStream (output, CompressionMode.Compress, CompressionLevel.Level9))
-                input.CopyTo (stream);
-            Console.WriteLine ("{0} => {1}", args[0], args[1]);
-        }
-        catch (Exception X)
-        {
-            Console.Error.WriteLine (X.Message);
-        }
-    }
-}
diff --git a/inflate.cs b/inflate.cs
deleted file mode 100644
index 3e847158..00000000
--- a/inflate.cs
+++ /dev/null
@@ -1,30 +0,0 @@
-//! \file       inflate.cs
-//! \date       Tue Jul 08 14:20:38 2014
-//! \brief      inflate zlib stream.
-//
-
-using System;
-using System.IO;
-using System.IO.Compression;
-
-class Inflate
-{
-    public static void Main (string[] args)
-    {
-        if (args.Length != 2)
-            return;
-        try
-        {
-            var input = File.Open (args[0], FileMode.Open, FileAccess.Read);
-            input.Position = 2;
-            using (var stream = new DeflateStream (input, CompressionMode.Decompress))
-            using (var output = File.Create (args[1]))
-                stream.CopyTo (output);
-            Console.WriteLine ("{0} => {1}", args[0], args[1]);
-        }
-        catch (Exception X)
-        {
-            Console.Error.WriteLine (X.Message);
-        }
-    }
-}