diff --git a/Core/BkwdComp/ExcludeFromCodeCoverageAttribute.PreNet40.cs b/Core/BkwdComp/ExcludeFromCodeCoverageAttribute.PreNet40.cs
index cb79fabd..8153d779 100644
--- a/Core/BkwdComp/ExcludeFromCodeCoverageAttribute.PreNet40.cs
+++ b/Core/BkwdComp/ExcludeFromCodeCoverageAttribute.PreNet40.cs
@@ -1,4 +1,4 @@
-#if (NET20 || NET35)
+#if (NET20 || NET35 || NETCOREAPP1_0 || NETCOREAPP1_1)
 namespace System.Diagnostics.CodeAnalysis
 {
 	/// <summary>Compensates for missing attribute in .NET 2.0</summary>
diff --git a/Core/Vanara.Core.csproj b/Core/Vanara.Core.csproj
index 099b6f6d..fc097949 100644
--- a/Core/Vanara.Core.csproj
+++ b/Core/Vanara.Core.csproj
@@ -10,7 +10,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.Core</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara</RootNamespace>
diff --git a/PInvoke/BITS/Vanara.PInvoke.BITS.csproj b/PInvoke/BITS/Vanara.PInvoke.BITS.csproj
index 613a2331..c0c8855f 100644
--- a/PInvoke/BITS/Vanara.PInvoke.BITS.csproj
+++ b/PInvoke/BITS/Vanara.PInvoke.BITS.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.BITS</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/Cryptography/Vanara.PInvoke.Cryptography.csproj b/PInvoke/Cryptography/Vanara.PInvoke.Cryptography.csproj
index aaa56214..0f6d4b2f 100644
--- a/PInvoke/Cryptography/Vanara.PInvoke.Cryptography.csproj
+++ b/PInvoke/Cryptography/Vanara.PInvoke.Cryptography.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.Cryptography</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/IpHlpApi/Vanara.PInvoke.IpHlpApi.csproj b/PInvoke/IpHlpApi/Vanara.PInvoke.IpHlpApi.csproj
index 531e523c..0483994a 100644
--- a/PInvoke/IpHlpApi/Vanara.PInvoke.IpHlpApi.csproj
+++ b/PInvoke/IpHlpApi/Vanara.PInvoke.IpHlpApi.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.IpHlpApi</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/Kernel32/Vanara.PInvoke.Kernel32.csproj b/PInvoke/Kernel32/Vanara.PInvoke.Kernel32.csproj
index 887d70f2..775013b6 100644
--- a/PInvoke/Kernel32/Vanara.PInvoke.Kernel32.csproj
+++ b/PInvoke/Kernel32/Vanara.PInvoke.Kernel32.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.Kernel32</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/Mpr/Vanara.PInvoke.Mpr.csproj b/PInvoke/Mpr/Vanara.PInvoke.Mpr.csproj
index 94bf88e9..c717d037 100644
--- a/PInvoke/Mpr/Vanara.PInvoke.Mpr.csproj
+++ b/PInvoke/Mpr/Vanara.PInvoke.Mpr.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.Mpr</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/NTDSApi/Vanara.PInvoke.NTDSApi.csproj b/PInvoke/NTDSApi/Vanara.PInvoke.NTDSApi.csproj
index 549ecd20..79c13af2 100644
--- a/PInvoke/NTDSApi/Vanara.PInvoke.NTDSApi.csproj
+++ b/PInvoke/NTDSApi/Vanara.PInvoke.NTDSApi.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.NTDSApi</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/NTDll/Vanara.PInvoke.NTDll.csproj b/PInvoke/NTDll/Vanara.PInvoke.NTDll.csproj
index 2c63c6e9..8dd9a588 100644
--- a/PInvoke/NTDll/Vanara.PInvoke.NTDll.csproj
+++ b/PInvoke/NTDll/Vanara.PInvoke.NTDll.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.NtDll</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/NetApi32/Vanara.PInvoke.NetApi32.csproj b/PInvoke/NetApi32/Vanara.PInvoke.NetApi32.csproj
index 376e41db..ae54afe0 100644
--- a/PInvoke/NetApi32/Vanara.PInvoke.NetApi32.csproj
+++ b/PInvoke/NetApi32/Vanara.PInvoke.NetApi32.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.NetApi32</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/NetListMgr/NetListMgr.cs b/PInvoke/NetListMgr/NetListMgr.cs
index 595cc24d..af9d62d2 100644
--- a/PInvoke/NetListMgr/NetListMgr.cs
+++ b/PInvoke/NetListMgr/NetListMgr.cs
@@ -177,7 +177,7 @@ namespace Vanara.PInvoke.NetListMgr
 	public interface IEnumNetworkConnections : IEnumerable
 	{
 		[DispId(-4)]
-#if !NETSTANDARD2_0
+#if (NET20 || NET35 || NET40 || NET45)
 		[return: MarshalAs(UnmanagedType.CustomMarshaler, MarshalType = "", MarshalTypeRef = typeof(System.Runtime.InteropServices.CustomMarshalers.EnumeratorToEnumVariantMarshaler), MarshalCookie = "")]
 		new IEnumerator GetEnumerator();
 #else
@@ -214,7 +214,7 @@ namespace Vanara.PInvoke.NetListMgr
 	public interface IEnumNetworks : IEnumerable
 	{
 		[DispId(-4)]
-#if !NETSTANDARD2_0
+#if (NET20 || NET35 || NET40 || NET45)
 		[return: MarshalAs(UnmanagedType.CustomMarshaler, MarshalType = "", MarshalTypeRef = typeof(System.Runtime.InteropServices.CustomMarshalers.EnumeratorToEnumVariantMarshaler), MarshalCookie = "")]
 		new IEnumerator GetEnumerator();
 #else
diff --git a/PInvoke/NetListMgr/Vanara.PInvoke.NetListMgr.csproj b/PInvoke/NetListMgr/Vanara.PInvoke.NetListMgr.csproj
index 8e38f663..3a375543 100644
--- a/PInvoke/NetListMgr/Vanara.PInvoke.NetListMgr.csproj
+++ b/PInvoke/NetListMgr/Vanara.PInvoke.NetListMgr.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.NetListMgr</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/Ole/Vanara.PInvoke.Ole.csproj b/PInvoke/Ole/Vanara.PInvoke.Ole.csproj
index f2c17e95..57eb318d 100644
--- a/PInvoke/Ole/Vanara.PInvoke.Ole.csproj
+++ b/PInvoke/Ole/Vanara.PInvoke.Ole.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.Ole</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/Security/Vanara.PInvoke.Security.csproj b/PInvoke/Security/Vanara.PInvoke.Security.csproj
index 4714dc19..91987c11 100644
--- a/PInvoke/Security/Vanara.PInvoke.Security.csproj
+++ b/PInvoke/Security/Vanara.PInvoke.Security.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.Security</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/Shared/Vanara.PInvoke.Shared.csproj b/PInvoke/Shared/Vanara.PInvoke.Shared.csproj
index 4b1275c0..2de2269b 100644
--- a/PInvoke/Shared/Vanara.PInvoke.Shared.csproj
+++ b/PInvoke/Shared/Vanara.PInvoke.Shared.csproj
@@ -12,8 +12,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <!--<TargetFramework>netstandard2.0</TargetFramework>-->
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.Shared</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
@@ -73,4 +72,14 @@ ACCESS_MASK, DrawTextFlags, FacilityCode, FacilityCode, FileFlagsAndAttributes,
       <Version>4.5.0</Version>
     </PackageReference>
   </ItemGroup>
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">
+    <PackageReference Include="Microsoft.Win32.Registry">
+      <Version>4.5.0</Version>
+    </PackageReference>
+  </ItemGroup>
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.1' ">
+    <PackageReference Include="Microsoft.Win32.Registry">
+      <Version>4.5.0</Version>
+    </PackageReference>
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/PInvoke/ShlwApi/Vanara.PInvoke.ShlwApi.csproj b/PInvoke/ShlwApi/Vanara.PInvoke.ShlwApi.csproj
index d9d107cd..51e8ea07 100644
--- a/PInvoke/ShlwApi/Vanara.PInvoke.ShlwApi.csproj
+++ b/PInvoke/ShlwApi/Vanara.PInvoke.ShlwApi.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.ShlwApi</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/TaskSchd/Vanara.PInvoke.TaskSchd.csproj b/PInvoke/TaskSchd/Vanara.PInvoke.TaskSchd.csproj
index ab571d26..3bea3036 100644
--- a/PInvoke/TaskSchd/Vanara.PInvoke.TaskSchd.csproj
+++ b/PInvoke/TaskSchd/Vanara.PInvoke.TaskSchd.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.TaskSchd</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/User32/Vanara.PInvoke.User32.csproj b/PInvoke/User32/Vanara.PInvoke.User32.csproj
index ab90b64a..a25a93b1 100644
--- a/PInvoke/User32/Vanara.PInvoke.User32.csproj
+++ b/PInvoke/User32/Vanara.PInvoke.User32.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.User32</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/VirtDisk/Vanara.PInvoke.VirtDisk.csproj b/PInvoke/VirtDisk/Vanara.PInvoke.VirtDisk.csproj
index 7e70a8a6..8c5692a6 100644
--- a/PInvoke/VirtDisk/Vanara.PInvoke.VirtDisk.csproj
+++ b/PInvoke/VirtDisk/Vanara.PInvoke.VirtDisk.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.VirtDisk</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/WinINet/Vanara.PInvoke.WinINet.csproj b/PInvoke/WinINet/Vanara.PInvoke.WinINet.csproj
index c8e3a7f3..ab4269d1 100644
--- a/PInvoke/WinINet/Vanara.PInvoke.WinINet.csproj
+++ b/PInvoke/WinINet/Vanara.PInvoke.WinINet.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.WinINet</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/PInvoke/Ws2_32/Vanara.PInvoke.Ws2_32.csproj b/PInvoke/Ws2_32/Vanara.PInvoke.Ws2_32.csproj
index 039b7d05..09a4c1a6 100644
--- a/PInvoke/Ws2_32/Vanara.PInvoke.Ws2_32.csproj
+++ b/PInvoke/Ws2_32/Vanara.PInvoke.Ws2_32.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.PInvoke.Ws2_32</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <RootNamespace>Vanara.PInvoke</RootNamespace>
diff --git a/Security/ActiveDirectoryExtension.cs b/Security/ActiveDirectoryExtension.cs
index 6479fc15..667119b4 100644
--- a/Security/ActiveDirectoryExtension.cs
+++ b/Security/ActiveDirectoryExtension.cs
@@ -1,4 +1,4 @@
-#if !(NETSTANDARD2_0)
+#if (NET20 || NET35 || NET40 || NET45)
 using System;
 using System.Linq;
 using System.DirectoryServices.ActiveDirectory;
diff --git a/Security/Principal/WindowsImpersonatedIdentity.cs b/Security/Principal/WindowsImpersonatedIdentity.cs
index abc5f74f..144950b8 100644
--- a/Security/Principal/WindowsImpersonatedIdentity.cs
+++ b/Security/Principal/WindowsImpersonatedIdentity.cs
@@ -1,4 +1,4 @@
-#if !(NETSTANDARD2_0)
+#if (NET20 || NET35 || NET40 || NET45)
 using System;
 using System.ComponentModel;
 using System.Security.Principal;
diff --git a/Security/Vanara.Security.csproj b/Security/Vanara.Security.csproj
index fdadcac6..2ae9ec0c 100644
--- a/Security/Vanara.Security.csproj
+++ b/Security/Vanara.Security.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.Security</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
diff --git a/System/Extensions/ProcessExtension.cs b/System/Extensions/ProcessExtension.cs
index 367d9ee6..77b6b84b 100644
--- a/System/Extensions/ProcessExtension.cs
+++ b/System/Extensions/ProcessExtension.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
-#if !(NETSTANDARD2_0)
+#if (NET20 || NET35 || NET40 || NET45)
 using System.Management;
 #endif
 using System.Runtime.InteropServices;
@@ -42,7 +42,7 @@ namespace Vanara.Extensions
 			}
 		}
 
-#if !(NET20 || NETSTANDARD2_0)
+#if (NET35 || NET40 || NET45)
 		/// <summary>Gets the child processes.</summary>
 		/// <param name="p">The process.</param>
 		/// <param name="includeDescendants">if set to <c>true</c> include descendants of child processes as well.</param>
@@ -101,7 +101,7 @@ namespace Vanara.Extensions
 			}
 		}
 
-#if !(NETSTANDARD2_0)
+#if (NET20 || NET35 || NET40 || NET45)
 		/// <summary>
 		/// Gets the parent process.
 		/// </summary>
diff --git a/System/Extensions/ServiceControllerExtension.cs b/System/Extensions/ServiceControllerExtension.cs
index 0b0118c2..1a4bf00b 100644
--- a/System/Extensions/ServiceControllerExtension.cs
+++ b/System/Extensions/ServiceControllerExtension.cs
@@ -1,4 +1,4 @@
-#if !NETSTANDARD2_0
+#if (NET20 || NET35 || NET40 || NET45)
 using System.ComponentModel;
 using System.Runtime.InteropServices;
 using System.ServiceProcess;
diff --git a/System/Registry/RegistryEventMonitor.cs b/System/Registry/RegistryEventMonitor.cs
index 81a7dc23..adc52aa8 100644
--- a/System/Registry/RegistryEventMonitor.cs
+++ b/System/Registry/RegistryEventMonitor.cs
@@ -311,7 +311,7 @@ namespace Vanara.Registry
 				case "HKEY_CURRENT_CONFIG":
 					hive = RegistryHive.CurrentConfig;
 					break;
-#if !NETSTANDARD2_0
+#if (NET20 || NET35 || NET40 || NET45)
 				case "HKEY_DYN_DATA":
 					hive = RegistryHive.DynData;
 					break;
diff --git a/System/Vanara.SystemServices.csproj b/System/Vanara.SystemServices.csproj
index 3b9cdf76..b1111047 100644
--- a/System/Vanara.SystemServices.csproj
+++ b/System/Vanara.SystemServices.csproj
@@ -5,7 +5,7 @@
     <Copyright>Copyright © 2017-2018</Copyright>
     <AssemblyTitle>$(AssemblyName)</AssemblyTitle>
     <VersionPrefix>2.1.0</VersionPrefix>
-    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net45;netstandard2.0;netcoreapp2.0;netcoreapp2.1</TargetFrameworks>
     <AssemblyName>Vanara.SystemServices</AssemblyName>
     <PackageId>$(AssemblyName)</PackageId>
     <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
@@ -63,6 +63,12 @@ BackgroundCopyACLFlags, BackgroundCopyCost, BackgroundCopyErrorContext, Backgrou
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
     <PackageReference Include="System.IO.FileSystem.AccessControl" Version="4.5.0" />
   </ItemGroup>
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.0' ">
+    <PackageReference Include="System.IO.FileSystem.AccessControl" Version="4.5.0" />
+  </ItemGroup>
+  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp2.1' ">
+    <PackageReference Include="System.IO.FileSystem.AccessControl" Version="4.5.0" />
+  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\PInvoke\BITS\Vanara.PInvoke.BITS.csproj" />
     <ProjectReference Include="..\PInvoke\IpHlpApi\Vanara.PInvoke.IpHlpApi.csproj" />