diff --git a/NuGet.config b/NuGet.config
index 03704957e8..c6736f44b9 100644
--- a/NuGet.config
+++ b/NuGet.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
-    <add key="AspNetVNext" value="https://www.myget.org/F/aspnetcidev/api/v3/index.json" />
+    <add key="AspNetVNext" value="https://www.myget.org/F/aspnetvolatiledev/api/v3/index.json" />
     <add key="NuGet" value="https://api.nuget.org/v3/index.json" />
   </packageSources>
-</configuration>
\ No newline at end of file
+</configuration>
diff --git a/samples/SampleStartups/project.json b/samples/SampleStartups/project.json
index f26e655e65..ffd61f20b1 100644
--- a/samples/SampleStartups/project.json
+++ b/samples/SampleStartups/project.json
@@ -1,10 +1,13 @@
 {
   "version": "1.0.0-*",
   "dependencies": {
-    "Microsoft.AspNetCore.Hosting": "1.0.0-*"
+    "Microsoft.AspNetCore.Hosting": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*"
   },
   "frameworks": {
-    "dnx451": { },
-    "dnxcore50": { }
+    "dnx451": {},
+    "dnxcore50": {
+      "imports": "portable-net451+win8"
+  	}
   }
 }
diff --git a/src/Microsoft.AspNetCore.Hosting.WindowsServices/project.json b/src/Microsoft.AspNetCore.Hosting.WindowsServices/project.json
index 0c21602221..8524b1e0d7 100644
--- a/src/Microsoft.AspNetCore.Hosting.WindowsServices/project.json
+++ b/src/Microsoft.AspNetCore.Hosting.WindowsServices/project.json
@@ -1,22 +1,22 @@
 {
-    "version": "1.0.0-*",
-    "description": "ASP.NET 5 core hosting infrastructure and startup logic for web applications running within a Windows service.",
-    "repository": {
-        "type": "git",
-        "url": "git://github.com/aspnet/hosting"
-    },
-    "compilationOptions": {
-        "warningsAsErrors": true,
-        "keyFile": "../../tools/Key.snk"
-    },
-    "dependencies": {
-        "Microsoft.AspNetCore.Hosting": "1.0.0-*"
-    },
-    "frameworks": {
-        "net451": {
-            "frameworkAssemblies": {
-                "System.ServiceProcess": ""
-            }
-        }
+  "version": "1.0.0-*",
+  "description": "ASP.NET 5 core hosting infrastructure and startup logic for web applications running within a Windows service.",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/aspnet/hosting"
+  },
+  "compilationOptions": {
+    "warningsAsErrors": true,
+    "keyFile": "../../tools/Key.snk"
+  },
+  "dependencies": {
+    "Microsoft.AspNetCore.Hosting": "1.0.0-*"
+  },
+  "frameworks": {
+    "net451": {
+      "frameworkAssemblies": {
+        "System.ServiceProcess": ""
+      }
     }
+  }
 }
diff --git a/src/Microsoft.AspNetCore.Hosting/project.json b/src/Microsoft.AspNetCore.Hosting/project.json
index 1d5266894a..74f985bb66 100644
--- a/src/Microsoft.AspNetCore.Hosting/project.json
+++ b/src/Microsoft.AspNetCore.Hosting/project.json
@@ -40,7 +40,8 @@
         "System.Console": "4.0.0-*",
         "System.Diagnostics.StackTrace": "4.0.1-*",
         "System.Reflection.Extensions": "4.0.1-*"
-      }
+      },
+      "imports": "portable-net45+win8"
     }
   }
 }
diff --git a/src/Microsoft.AspNetCore.Server.Testing/project.json b/src/Microsoft.AspNetCore.Server.Testing/project.json
index 33015bb134..bf07662e9f 100644
--- a/src/Microsoft.AspNetCore.Server.Testing/project.json
+++ b/src/Microsoft.AspNetCore.Server.Testing/project.json
@@ -12,7 +12,8 @@
   "dependencies": {
     "Microsoft.AspNetCore.Testing": "1.0.0-*",
     "Microsoft.Extensions.Logging.Abstractions": "1.0.0-*",
-    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-*"
+    "Microsoft.Extensions.PlatformAbstractions": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*"
   },
   "frameworks": {
     "dnx451": {
@@ -34,7 +35,8 @@
         "System.Text.RegularExpressions": "4.0.11-*",
         "System.Threading": "4.0.11-*",
         "System.Threading.Thread": "4.0.0-*"
-      }
+      },
+      "imports": "portable-net45+win8"
     }
   }
 }
diff --git a/src/Microsoft.AspNetCore.TestHost/project.json b/src/Microsoft.AspNetCore.TestHost/project.json
index e8d5193122..22321d9ca1 100644
--- a/src/Microsoft.AspNetCore.TestHost/project.json
+++ b/src/Microsoft.AspNetCore.TestHost/project.json
@@ -22,7 +22,8 @@
       "dependencies": {
         "System.Diagnostics.Contracts": "4.0.1-*",
         "System.Net.Http": "4.0.1-*"
-      }
+      },
+      "imports": "portable-net45+win8"
     }
   }
 }
diff --git a/test/Microsoft.AspNetCore.Hosting.Tests/project.json b/test/Microsoft.AspNetCore.Hosting.Tests/project.json
index f9ad4c684e..0c155b27cd 100644
--- a/test/Microsoft.AspNetCore.Hosting.Tests/project.json
+++ b/test/Microsoft.AspNetCore.Hosting.Tests/project.json
@@ -12,6 +12,7 @@
     "Microsoft.AspNetCore.Testing": "1.0.0-*",
     "Microsoft.Extensions.Options": "1.0.0-*",
     "Microsoft.Extensions.PlatformAbstractions": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*",
     "xunit": "2.1.0"
   },
   "frameworks": {
@@ -23,7 +24,8 @@
     "dnxcore50": { 
       "dependencies": {
         "xunit.runner.aspnet": "2.0.0-aspnet-*"
-      }
+      },
+      "imports": "portable-net451+win8"
     }
   },
   "testRunner": "xunit",
diff --git a/test/Microsoft.AspNetCore.TestHost.Tests/project.json b/test/Microsoft.AspNetCore.TestHost.Tests/project.json
index 68502a7c9f..2b0035dbdc 100644
--- a/test/Microsoft.AspNetCore.TestHost.Tests/project.json
+++ b/test/Microsoft.AspNetCore.TestHost.Tests/project.json
@@ -7,6 +7,7 @@
     "Microsoft.AspNetCore.Testing": "1.0.0-*",
     "Microsoft.AspNetCore.TestHost": "1.0.0-*",
     "Microsoft.Extensions.DiagnosticAdapter": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*",
     "xunit": "2.1.0"
   },
   "frameworks": {
@@ -18,7 +19,8 @@
     "dnxcore50": { 
       "dependencies": {
         "xunit.runner.aspnet": "2.0.0-aspnet-*"
-      }
+      },
+      "imports": "portable-net451+win8"
     }
   },
   "testRunner": "xunit",