diff --git a/DiscImageChef.DiscImages/DiscImageChef.DiscImages.csproj b/DiscImageChef.DiscImages/DiscImageChef.DiscImages.csproj
index adb3ef5a2..7a38b8238 100644
--- a/DiscImageChef.DiscImages/DiscImageChef.DiscImages.csproj
+++ b/DiscImageChef.DiscImages/DiscImageChef.DiscImages.csproj
@@ -42,6 +42,9 @@
     <Reference Include="SharpCompress">
       <HintPath>..\packages\SharpCompress.0.17.0\lib\net35\SharpCompress.dll</HintPath>
     </Reference>
+    <Reference Include="DotNetZip">
+      <HintPath>..\packages\DotNetZip.1.10.1\lib\net20\DotNetZip.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -127,7 +130,7 @@
             <inheritsSet />
             <inheritsScope />
           </TextStylePolicy>
-          <CSharpFormattingPolicy IndentBlock="True" IndentBraces="False" IndentSwitchSection="True" IndentSwitchCaseSection="True" LabelPositioning="OneLess" NewLinesForBracesInTypes="True" NewLinesForBracesInMethods="True" NewLinesForBracesInProperties="True" NewLinesForBracesInAccessors="True" NewLinesForBracesInAnonymousMethods="True" NewLinesForBracesInControlBlocks="True" NewLinesForBracesInAnonymousTypes="True" NewLinesForBracesInObjectCollectionArrayInitializers="True" NewLinesForBracesInLambdaExpressionBody="True" NewLineForElse="True" NewLineForCatch="True" NewLineForFinally="True" SpacingAfterMethodDeclarationName="False" SpaceWithinMethodDeclarationParenthesis="False" SpaceBetweenEmptyMethodDeclarationParentheses="False" SpaceAfterMethodCallName="False" SpaceWithinMethodCallParentheses="False" SpaceBetweenEmptyMethodCallParentheses="False" SpaceAfterControlFlowStatementKeyword="False" SpaceWithinExpressionParentheses="False" SpaceWithinCastParentheses="False" SpaceWithinOtherParentheses="False" SpaceAfterCast="False" SpacesIgnoreAroundVariableDeclaration="False" SpaceBeforeOpenSquareBracket="False" SpaceBetweenEmptySquareBrackets="False" SpaceWithinSquareBrackets="False" SpaceAfterColonInBaseTypeDeclaration="True" SpaceAfterComma="True" SpaceAfterDot="False" SpaceAfterSemicolonsInForStatement="True" SpaceBeforeColonInBaseTypeDeclaration="True" SpaceBeforeComma="False" SpaceBeforeDot="False" SpaceBeforeSemicolonsInForStatement="False" SpacingAroundBinaryOperator="Single" WrappingPreserveSingleLine="True" WrappingKeepStatementsOnSingleLine="True" PlaceSystemDirectiveFirst="True" NewLineForMembersInObjectInit="False" NewLineForMembersInAnonymousTypes="False" NewLineForClausesInQuery="False" scope="text/x-csharp">
+          <CSharpFormattingPolicy IndentBlock="True" IndentBraces="False" IndentSwitchSection="True" IndentSwitchCaseSection="True" LabelPositioning="OneLess" NewLinesForBracesInTypes="True" NewLinesForBracesInMethods="True" NewLinesForBracesInProperties="True" NewLinesForBracesInAccessors="True" NewLinesForBracesInAnonymousMethods="True" NewLinesForBracesInControlBlocks="True" NewLinesForBracesInAnonymousTypes="True" NewLinesForBracesInObjectCollectionArrayInitializers="True" NewLinesForBracesInLambdaExpressionBody="True" NewLineForElse="True" NewLineForCatch="True" NewLineForFinally="True" NewLineForMembersInObjectInit="False" NewLineForMembersInAnonymousTypes="False" NewLineForClausesInQuery="False" SpacingAfterMethodDeclarationName="False" SpaceWithinMethodDeclarationParenthesis="False" SpaceBetweenEmptyMethodDeclarationParentheses="False" SpaceAfterMethodCallName="False" SpaceWithinMethodCallParentheses="False" SpaceBetweenEmptyMethodCallParentheses="False" SpaceAfterControlFlowStatementKeyword="False" SpaceWithinExpressionParentheses="False" SpaceWithinCastParentheses="False" SpaceWithinOtherParentheses="False" SpaceAfterCast="False" SpacesIgnoreAroundVariableDeclaration="False" SpaceBeforeOpenSquareBracket="False" SpaceBetweenEmptySquareBrackets="False" SpaceWithinSquareBrackets="False" SpaceAfterColonInBaseTypeDeclaration="True" SpaceAfterComma="True" SpaceAfterDot="False" SpaceAfterSemicolonsInForStatement="True" SpaceBeforeColonInBaseTypeDeclaration="True" SpaceBeforeComma="False" SpaceBeforeDot="False" SpaceBeforeSemicolonsInForStatement="False" SpacingAroundBinaryOperator="Single" WrappingPreserveSingleLine="True" WrappingKeepStatementsOnSingleLine="True" PlaceSystemDirectiveFirst="True" scope="text/x-csharp">
             <inheritsSet />
             <inheritsScope />
           </CSharpFormattingPolicy>
diff --git a/DiscImageChef.DiscImages/UDIF.cs b/DiscImageChef.DiscImages/UDIF.cs
index 07d3b2251..283cbb689 100644
--- a/DiscImageChef.DiscImages/UDIF.cs
+++ b/DiscImageChef.DiscImages/UDIF.cs
@@ -561,7 +561,7 @@ namespace DiscImageChef.DiscImages
 					if(currentChunk.type == ChunkType_ADC)
 						decStream = new ADCStream(cmpMs, CompressionMode.Decompress);
 					else if(currentChunk.type == ChunkType_Zlib)
-						decStream = new ZlibStream(cmpMs, CompressionMode.Decompress);
+						decStream = new Ionic.Zlib.ZlibStream(cmpMs, Ionic.Zlib.CompressionMode.Decompress);
 					else if(currentChunk.type == ChunkType_Bzip)
 						decStream = new BZip2Stream(cmpMs, CompressionMode.Decompress);
 					else
diff --git a/DiscImageChef.DiscImages/packages.config b/DiscImageChef.DiscImages/packages.config
index a20ed0b7d..ec732066e 100644
--- a/DiscImageChef.DiscImages/packages.config
+++ b/DiscImageChef.DiscImages/packages.config
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Claunia.RsrcFork" version="1.0.0" targetFramework="net40" />
+  <package id="DotNetZip" version="1.10.1" targetFramework="net40" />
   <package id="plist-cil" version="1.16.0" targetFramework="net40" />
   <package id="SharpCompress" version="0.17.0" targetFramework="net40" />
 </packages>
\ No newline at end of file