More MyGet enablement

Runtime.msbuild

@@ -49,12 +49,9 @@
             BuildInParallel="false"
             Targets="RestorePackages" />
         <!-- Hand restore packages with binaries that this MSBuild process needs -->
-        <Exec
-            Command='tools\NuGet.exe install StyleCop -Source "\\webstack-git\packages;https://go.microsoft.com/fwlink/?LinkID=230477" -Version 4.7.10.0 -o packages > NUL'
-            LogStandardErrorAsError="true" />
-        <Exec
-            Command='tools\NuGet.exe install Microsoft.Web.FxCop -Source "\\webstack-git\packages;https://go.microsoft.com/fwlink/?LinkID=230477" -ExcludeVersion -o packages > NUL'
-            LogStandardErrorAsError="true" Condition=" !Exists('packages\Microsoft.Web.FxCop') " />
+        <MSBuild
+            Projects="tools\WebStack.NuGet.targets"
+            Targets="RestoreBinaryDependencies" />
     </Target>
 
     <Target Name="Build" DependsOnTargets="RestorePackages">

tools/WebStack.NuGet.targets

@@ -45,6 +45,16 @@
               Condition="Exists('$(PackagesConfig)')" />
     </Target>
 
+    <Target Name="RestoreBinaryDependencies">
+        <Exec
+            Command='"$(NuGetExePath)" install StyleCop -source $(PackageSources) -o "$(PackagesDir)" -Version 4.7.10.0 > NUL'
+            LogStandardErrorAsError="true" />
+        <Exec
+            Command='"$(NuGetExePath)" install Microsoft.Web.FxCop -source $(PackageSources) -o "$(PackagesDir)" -ExcludeVersion > NUL'
+            LogStandardErrorAsError="true"
+            Condition=" !Exists('packages\Microsoft.Web.FxCop') " />
+    </Target>
+
     <Target Name="BuildPackage" DependsOnTargets="CheckPrerequisites">
         <Exec Command="$(BuildCommand)"
               LogStandardErrorAsError="true" />