diff --git a/DefaultPlugin/Network/NetworkProcessor.cs b/DefaultPlugin/Network/NetworkProcessor.cs
index 80bb20bff..dd73c5ba7 100644
--- a/DefaultPlugin/Network/NetworkProcessor.cs
+++ b/DefaultPlugin/Network/NetworkProcessor.cs
@@ -1,11 +1,7 @@
 using System;
 using System.Drawing;
 using System.IO;
-#if __MonoCS__
 using Ionic.Zlib;
-#else
-using System.IO.Compression;
-#endif
 using System.Net;
 using System.Net.Sockets;
 using ClassicalSharp;
@@ -248,19 +244,7 @@ namespace DefaultPlugin.Network {
 						}
 						receivedFirstPosition = false;
 						gzipHeader = new GZipHeaderReader();
-						// Workaround because built in mono stream assumes that the end of stream
-						// has been reached the first time a read call returns 0. (MS.NET doesn't)
-						#if __MonoCS__
 						gzipStream = new DeflateStream( gzippedMap, true );
-						#else
-						gzipStream = new DeflateStream( gzippedMap, CompressionMode.Decompress );
-						if( OpenTK.Configuration.RunningOnMono ) {
-							Utils.LogWarning( "You are running on Mono, but this build does not support the Mono workaround." );
-							Utils.LogWarning( "You should either download the Mono compatible build or define '__MonoCS__' when targeting Mono. " +
-							                 "(The Mono compiler already defines this by default)" );
-							Utils.LogWarning( "You will likely experience an 'Internal error (no progress possible) ReadInternal' exception when decompressing the map." );
-						}
-						#endif
 						mapSizeIndex = 0;
 						mapIndex = 0;
 						receiveStart = DateTime.UtcNow;
diff --git a/Ionic.Zlib/DeflateStream.cs b/Ionic.Zlib/DeflateStream.cs
index 481569fbd..7d519f95a 100644
--- a/Ionic.Zlib/DeflateStream.cs
+++ b/Ionic.Zlib/DeflateStream.cs
@@ -1,13 +1,12 @@
 // Originally copyright (c) 2009 Dino Chiesa and Microsoft Corporation.
 // All rights reserved.
 // See license.txt, section Ionic.Zlib license
-#if __MonoCS__
 using System;
 using System.IO;
 
 namespace Ionic.Zlib {
 	
-	internal class DeflateStream {
+	public class DeflateStream {
 		
 		ZlibCodec z;
 		bool _leaveOpen;
@@ -71,5 +70,4 @@ namespace Ionic.Zlib {
 			return count - z.AvailableBytesOut;
 		}
 	}
-}
-#endif
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/Ionic.Zlib/InfTree.cs b/Ionic.Zlib/InfTree.cs
index aed643314..f75cf8743 100644
--- a/Ionic.Zlib/InfTree.cs
+++ b/Ionic.Zlib/InfTree.cs
@@ -1,7 +1,6 @@
 // Originally copyright (c) 2009 Dino Chiesa and Microsoft Corporation.
 // All rights reserved.
 // See license.txt, section Ionic.Zlib license
-#if __MonoCS__
 using System;
 namespace Ionic.Zlib {
 	
@@ -292,5 +291,4 @@ namespace Ionic.Zlib {
 			return (int)( (uint)value >> bits );
 		}
 	}
-}
-#endif
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/Ionic.Zlib/Inflate.cs b/Ionic.Zlib/Inflate.cs
index 67408b135..4db5c58b3 100644
--- a/Ionic.Zlib/Inflate.cs
+++ b/Ionic.Zlib/Inflate.cs
@@ -1,7 +1,6 @@
 // Originally copyright (c) 2009 Dino Chiesa and Microsoft Corporation.
 // All rights reserved.
 // See license.txt, section Ionic.Zlib license
-#if __MonoCS__
 using System;
 using System.IO;
 
@@ -977,5 +976,4 @@ namespace Ionic.Zlib
 			return RCode.StreamEnd;
 		}
 	}
-}
-#endif
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/Ionic.Zlib/ZlibCodec.cs b/Ionic.Zlib/ZlibCodec.cs
index b20aaf1c5..795475611 100644
--- a/Ionic.Zlib/ZlibCodec.cs
+++ b/Ionic.Zlib/ZlibCodec.cs
@@ -1,7 +1,6 @@
 // Originally copyright (c) 2009 Dino Chiesa and Microsoft Corporation.
 // All rights reserved.
 // See license.txt, section Ionic.Zlib license
-#if __MonoCS__
 using System;
 
 namespace Ionic.Zlib {
@@ -40,5 +39,4 @@ namespace Ionic.Zlib {
 		public const int DataError = -3;
 		public const int BufferError = -5;
 	}
-}
-#endif
\ No newline at end of file
+}
\ No newline at end of file