diff --git a/src/Microsoft.AspNetCore.Hosting.WindowsServices/project.json b/src/Microsoft.AspNetCore.Hosting.WindowsServices/project.json
index 59cc3cf646..e441ccc06e 100644
--- a/src/Microsoft.AspNetCore.Hosting.WindowsServices/project.json
+++ b/src/Microsoft.AspNetCore.Hosting.WindowsServices/project.json
@@ -28,8 +28,8 @@
   "frameworks": {
     "net451": {
       "frameworkAssemblies": {
-        "System.ServiceProcess": ""
+        "System.ServiceProcess": "4.0.0.0"
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/src/Microsoft.AspNetCore.Hosting/project.json b/src/Microsoft.AspNetCore.Hosting/project.json
index 0558270ce4..92bf316329 100644
--- a/src/Microsoft.AspNetCore.Hosting/project.json
+++ b/src/Microsoft.AspNetCore.Hosting/project.json
@@ -56,19 +56,7 @@
     "System.Reflection.Metadata": "1.5.0-*"
   },
   "frameworks": {
-    "net451": {
-      "frameworkAssemblies": {
-        "System.Runtime": {
-          "type": "build"
-        },
-        "System.ComponentModel": {
-          "type": "build"
-        },
-        "System.IO": {
-          "type": "build"
-        }
-      }
-    },
+    "net451": { },
     "netstandard1.3": {
       "dependencies": {
         "System.Diagnostics.StackTrace": "4.4.0-*"
@@ -84,4 +72,4 @@
   "tools": {
     "RazorPageGenerator": "1.1.0-*"
   }
-}
\ No newline at end of file
+}
diff --git a/src/Microsoft.AspNetCore.Server.IntegrationTesting/project.json b/src/Microsoft.AspNetCore.Server.IntegrationTesting/project.json
index a69d697aaf..93f1f30329 100644
--- a/src/Microsoft.AspNetCore.Server.IntegrationTesting/project.json
+++ b/src/Microsoft.AspNetCore.Server.IntegrationTesting/project.json
@@ -46,12 +46,8 @@
         "Microsoft.Web.Administration": "7.0.0"
       },
       "frameworkAssemblies": {
-        "System.Net.Http": "",
-        "System.Runtime": {
-          "type": "build"
-        },
-        "System.Xml": "",
-        "System.Xml.Linq": ""
+        "System.Xml": "4.0.0.0",
+        "System.Xml.Linq": "4.0.0.0"
       }
     },
     "netstandard1.3": {
@@ -64,4 +60,4 @@
       ]
     }
   }
-}
\ No newline at end of file
+}
diff --git a/src/Microsoft.AspNetCore.TestHost/project.json b/src/Microsoft.AspNetCore.TestHost/project.json
index cbdef38c5a..7933d2a276 100644
--- a/src/Microsoft.AspNetCore.TestHost/project.json
+++ b/src/Microsoft.AspNetCore.TestHost/project.json
@@ -27,15 +27,11 @@
     "NETStandard.Library": "1.6.2-*"
   },
   "frameworks": {
-    "net451": {
-      "frameworkAssemblies": {
-        "System.Net.Http": ""
-      }
-    },
+    "net451": { },
     "netstandard1.3": {
       "dependencies": {
         "System.Diagnostics.Contracts": "4.4.0-*"
       }
     }
   }
-}
\ No newline at end of file
+}
diff --git a/test/Microsoft.AspNetCore.Hosting.FunctionalTests/Microsoft.AspNetCore.Hosting.FunctionalTests.xproj b/test/Microsoft.AspNetCore.Hosting.FunctionalTests/Microsoft.AspNetCore.Hosting.FunctionalTests.xproj
index 3e17cac8ac..d72a3c76a0 100644
--- a/test/Microsoft.AspNetCore.Hosting.FunctionalTests/Microsoft.AspNetCore.Hosting.FunctionalTests.xproj
+++ b/test/Microsoft.AspNetCore.Hosting.FunctionalTests/Microsoft.AspNetCore.Hosting.FunctionalTests.xproj
@@ -13,5 +13,8 @@
   <PropertyGroup>
     <SchemaVersion>2.0</SchemaVersion>
   </PropertyGroup>
+  <ItemGroup>
+    <Service Include="{82a7f48d-3b50-4b1e-b82e-3ada8210c358}" />
+  </ItemGroup>
   <Import Project="$(VSToolsPath)\DNX\Microsoft.DNX.targets" Condition="'$(VSToolsPath)' != ''" />
 </Project>
\ No newline at end of file