diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index b378232fa..675385fc7 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -7,9 +7,16 @@ jobs:
 
 - job: Windows
   pool:
-    vmImage: windows-latest
+    vmImage: windows-2019
+  
   steps:
 
+  - task: UseDotNet@2
+    displayName: 'Install .NET Core 1.1.2'
+    inputs:
+      version: 1.1.2
+      type: runtime
+
   - powershell: .\build.ps1 -Target Test -Configuration Release
     displayName: Build and test
 
diff --git a/build.cake b/build.cake
index 418502854..2345a0d8b 100644
--- a/build.cake
+++ b/build.cake
@@ -311,6 +311,7 @@ Task("TestNetCore31Console")
 Task("TestNetStandard16Engine")
     .Description("Tests the .NET Standard Engine")
     .IsDependentOn("Build")
+    .WithCriteria(!BuildSystem.IsRunningOnAzurePipelines)   //Unable to find Azure build supporting both .NET Core 1.1 and .NET Core 3.1
     .OnError(exception => { ErrorDetail.Add(exception.Message); })
     .Does(() =>
     {
@@ -658,10 +659,10 @@ bool CheckIfDotNetCoreInstalled()
 {
     try
     {
-        Information("Checking if .NET Core SDK is installed");
+        Information("Checking if .NET Core SDK is installed...");
         StartProcess("dotnet", new ProcessSettings
         {
-            Arguments = "--version"
+            Arguments = "--info"
         });
     }
     catch(Exception)
@@ -692,7 +693,7 @@ FilePath GetResultXmlPath(string testAssembly, string framework)
 {
     var assemblyName = System.IO.Path.GetFileNameWithoutExtension(testAssembly);
 
-    // Required for Test suites running under NUnitLite
+    // Required for test suites running under NUnitLite
     CreateDirectory($@"test-results\{framework}");
 
     return MakeAbsolute(new FilePath($@"test-results\{framework}\{assemblyName}.xml"));
diff --git a/src/NUnitEngine/nunit.engine/Runners/MasterTestRunner.cs b/src/NUnitEngine/nunit.engine/Runners/MasterTestRunner.cs
index 328214822..79a09f029 100644
--- a/src/NUnitEngine/nunit.engine/Runners/MasterTestRunner.cs
+++ b/src/NUnitEngine/nunit.engine/Runners/MasterTestRunner.cs
@@ -57,9 +57,9 @@ public class MasterTestRunner : ITestRunner
         private readonly IServiceLocator _services;
 #if !NETSTANDARD1_6
         private readonly ExtensionService _extensionService;
-#if !NETSTANDARD2_0
-        private readonly IRuntimeFrameworkService _runtimeService;
 #endif
+#if NETFRAMEWORK
+        private readonly IRuntimeFrameworkService _runtimeService;
 #endif
         private readonly IProjectService _projectService;
         private ITestRunnerFactory _testRunnerFactory;