diff --git a/src/TerminalVelocity.Sharp/Downloader.cs b/src/TerminalVelocity.Sharp/Downloader.cs
index 89263e1..b41ff26 100644
--- a/src/TerminalVelocity.Sharp/Downloader.cs
+++ b/src/TerminalVelocity.Sharp/Downloader.cs
@@ -72,7 +72,6 @@ internal static void StartDownloading(CancellationToken ct,  FailureToken ft,
             try
             {
 
-                int writtenChunkZeroBased = 0;
                 var readStack = new ConcurrentStack<int>();
 
                 //add all of the chunks to the stack
@@ -165,7 +164,7 @@ internal static void StartDownloading(CancellationToken ct,  FailureToken ft,
                                 if (worker.SimulateTimedOut)
                                     Thread.Sleep(3000); // introduce delay for unit test to pick-up the condition
                             }
-                            catch (Exception ex)
+                            catch (Exception)
                             { }
                         }
                     }
@@ -294,7 +293,7 @@ public static int ComputeProgressIndicator(long bytesWritten, long fileSize)
 
         }
 
-        internal Downloader(BufferManager bufferManager, 
+        public Downloader(BufferManager bufferManager, 
                             ILargeFileDownloadParameters parameters,
                             ConcurrentQueue<ChunkedFilePart> writeQueue,
                             ConcurrentStack<int> readStack,
@@ -431,7 +430,7 @@ internal static void ExecuteAndSquash( Action a)
             }
         }
         
-        internal static int ExpectedDownloadTimeInSeconds(int chunkSizeInBytes)
+        public static int ExpectedDownloadTimeInSeconds(int chunkSizeInBytes)
         {
             //so lets say 128Kbps per second with no overhead takes 62 seconds for 1MB 64kb = 16384bytes
             //20% latency
@@ -443,12 +442,12 @@ internal static int ExpectedDownloadTimeInSeconds(int chunkSizeInBytes)
         }
 
 
-        internal static long GetChunkStart(int currentChunk, int maxChunkSize)
+        public static long GetChunkStart(int currentChunk, int maxChunkSize)
         {
             return currentChunk*(long)maxChunkSize;
         }
 
-        internal static int GetChunkCount(long fileSize, long chunkSize)
+        public static int GetChunkCount(long fileSize, long chunkSize)
         {
             if (chunkSize == 0)
                 return 0;
@@ -463,7 +462,7 @@ internal static int GetChunkCount(long fileSize, long chunkSize)
             return 1 + chunkCount;
         }
 
-        internal static int GetChunkSizeForCurrentChunk(long fileSize, int maxChunkSize, int zeroBasedChunkNumber)
+        public static int GetChunkSizeForCurrentChunk(long fileSize, int maxChunkSize, int zeroBasedChunkNumber)
         {
             int chunkCount = GetChunkCount(fileSize, maxChunkSize);
 
diff --git a/src/TerminalVelocity.Sharp/FailureToken.cs b/src/TerminalVelocity.Sharp/FailureToken.cs
index a172117..801a9fa 100644
--- a/src/TerminalVelocity.Sharp/FailureToken.cs
+++ b/src/TerminalVelocity.Sharp/FailureToken.cs
@@ -3,7 +3,7 @@
 
 namespace Illumina.TerminalVelocity
 {
-    internal class FailureToken 
+    public class FailureToken 
     {
         public bool FailureDetected { get; private set; }        
 
diff --git a/src/TerminalVelocity.Sharp/LargeFileDownloadParameters.cs b/src/TerminalVelocity.Sharp/LargeFileDownloadParameters.cs
index 9cd1843..41123c6 100644
--- a/src/TerminalVelocity.Sharp/LargeFileDownloadParameters.cs
+++ b/src/TerminalVelocity.Sharp/LargeFileDownloadParameters.cs
@@ -79,7 +79,7 @@ protected static FileStream CreateOutputStream(string filePath, long fileLength,
             return stream;
         }
 
-        internal static void EnsureCleanFile(string filePath, bool deleteIfExists)
+        public static void EnsureCleanFile(string filePath, bool deleteIfExists)
         {
             if ((File.Exists(filePath) && deleteIfExists) || !File.Exists(filePath))
             {
diff --git a/src/TerminalVelocity.Sharp/SimpleHttpGetByRangeClient.cs b/src/TerminalVelocity.Sharp/SimpleHttpGetByRangeClient.cs
index cc9f168..0d36f42 100644
--- a/src/TerminalVelocity.Sharp/SimpleHttpGetByRangeClient.cs
+++ b/src/TerminalVelocity.Sharp/SimpleHttpGetByRangeClient.cs
@@ -142,7 +142,7 @@ protected void EnsureConnection(Uri uri, bool forceRebuild = false)
                 if (baseUri.Scheme.ToLower() == "https")
                 {
                     SslStream sslStream;
-#if XAMARIN       // THIS IS AN UGLY HACK TO MAKE IT WORK FOR SPACE ELEVATOR.            
+#if XAMARIN       // THIS IS AN UGLY HACK TO MAKE MONO TRUST EVERYTHING TO WORK FOR SPACE ELEVATOR (BaseSpace Downloader).            
                     sslStream = Helpers.IsRunningOnMono() ? new SslStream(clientStream, false, delegate { return true; }, null) : new SslStream(clientStream); 
 #else                    
                     sslStream = new SslStream(clientStream);
@@ -160,7 +160,7 @@ protected void EnsureConnection(Uri uri, bool forceRebuild = false)
         }
 
 
-        internal static string BuildHttpRequest(Uri uri, long start, long length)
+        public static string BuildHttpRequest(Uri uri, long start, long length)
         {
             string hostHeader;
             // see if they provided a port explicitly in the URI. If so, that must be set in the header
diff --git a/src/TerminalVelocity.Sharp/TerminalVelocity.Sharp.csproj b/src/TerminalVelocity.Sharp/TerminalVelocity.Sharp.csproj
index faad5fb..3d314b1 100644
--- a/src/TerminalVelocity.Sharp/TerminalVelocity.Sharp.csproj
+++ b/src/TerminalVelocity.Sharp/TerminalVelocity.Sharp.csproj
@@ -21,7 +21,7 @@
     <DebugType>full</DebugType>
     <Optimize>false</Optimize>
     <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>TRACE;DEBUG;XAMARIN</DefineConstants>
+    <DefineConstants>TRACE;DEBUG</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
@@ -29,7 +29,7 @@
     <DebugType>pdbonly</DebugType>
     <Optimize>true</Optimize>
     <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE;XAMARIN</DefineConstants>
+    <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
@@ -39,6 +39,24 @@
   <PropertyGroup>
     <AssemblyOriginatorKeyFile>..\..\..\SpaceElevator\src\SpaceElevator.Client\IlluminaStrongNameKey.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'XamarinMacRelease|AnyCPU'">
+    <OutputPath>bin\XamarinMacRelease\</OutputPath>
+    <DefineConstants>TRACE;XAMARIN</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'XamarinMacDebug|AnyCPU'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\XamarinMacDebug\</OutputPath>
+    <DefineConstants>TRACE;DEBUG;XAMARIN</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
diff --git a/tests/TerminalVelocity.Tests/TerminalVelocity.Tests.csproj b/tests/TerminalVelocity.Tests/TerminalVelocity.Tests.csproj
index a1feafe..458de87 100644
--- a/tests/TerminalVelocity.Tests/TerminalVelocity.Tests.csproj
+++ b/tests/TerminalVelocity.Tests/TerminalVelocity.Tests.csproj
@@ -77,6 +77,9 @@
   <ItemGroup>
     <Content Include="DownloadTests.SimpleGetClientGetsFirst100Bytes.approved.txt" />
   </ItemGroup>
+  <ItemGroup>
+    <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <Import Project="$(SolutionDir)\.nuget\nuget.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.