diff --git a/src/Hosting/Server.IntegrationTesting/src/Common/DotNetCommands.cs b/src/Hosting/Server.IntegrationTesting/src/Common/DotNetCommands.cs
index e30e9defc5..5533834014 100644
--- a/src/Hosting/Server.IntegrationTesting/src/Common/DotNetCommands.cs
+++ b/src/Hosting/Server.IntegrationTesting/src/Common/DotNetCommands.cs
@@ -1,4 +1,4 @@
-// Copyright (c) .NET Foundation. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
@@ -17,6 +17,7 @@ namespace Microsoft.AspNetCore.Server.IntegrationTesting
         public static string GetDotNetHome()
         {
             var dotnetHome = Environment.GetEnvironmentVariable("DOTNET_HOME");
+            var dotnetRoot = Environment.GetEnvironmentVariable("DOTNET_ROOT");
             var userProfile = Environment.GetEnvironmentVariable("USERPROFILE");
             var home = Environment.GetEnvironmentVariable("HOME");
 
@@ -25,6 +26,11 @@ namespace Microsoft.AspNetCore.Server.IntegrationTesting
             {
                 result = dotnetHome;
             }
+            else if (!string.IsNullOrEmpty(dotnetRoot))
+            {
+                // DOTNET_ROOT has x64 appended to the path, which we append again in GetDotNetInstallDir
+                result = dotnetRoot.Substring(0, dotnetRoot.Length - 3);
+            }
             else if (!string.IsNullOrEmpty(userProfile))
             {
                 result = Path.Combine(userProfile, _dotnetFolderName);
diff --git a/src/Servers/IIS/IIS/test/Common.FunctionalTests/Inprocess/StartupTests.cs b/src/Servers/IIS/IIS/test/Common.FunctionalTests/Inprocess/StartupTests.cs
index f3507ecf99..78eef04c73 100644
--- a/src/Servers/IIS/IIS/test/Common.FunctionalTests/Inprocess/StartupTests.cs
+++ b/src/Servers/IIS/IIS/test/Common.FunctionalTests/Inprocess/StartupTests.cs
@@ -108,7 +108,6 @@ namespace Microsoft.AspNetCore.Server.IISIntegration.FunctionalTests
             Assert.Equal(1, TestSink.Writes.Count(w => w.Message.Contains("Invoking where.exe to find dotnet.exe")));
         }
 
-
         [SkipOnHelix] // https://github.com/aspnet/AspNetCore/issues/7972
         [ConditionalTheory]
         [InlineData(RuntimeArchitecture.x64)]
@@ -186,16 +185,18 @@ namespace Microsoft.AspNetCore.Server.IISIntegration.FunctionalTests
             await StartAsync(deploymentParameters);
         }
 
-        [SkipOnHelix] // https://github.com/aspnet/AspNetCore/issues/7972
         [ConditionalFact]
         [RequiresIIS(IISCapability.PoolEnvironmentVariables)]
         public async Task StartsWithPortableAndBootstraperExe()
         {
             var deploymentParameters = _fixture.GetBaseDeploymentParameters(_fixture.InProcessTestSite);
+            deploymentParameters.TransformPath((path, root) => "InProcessWebSite.exe");
+            deploymentParameters.TransformArguments((arguments, root) => "");
+
             // We need the right dotnet on the path in IIS
             deploymentParameters.EnvironmentVariables["PATH"] = Path.GetDirectoryName(DotNetCommands.GetDotNetExecutable(deploymentParameters.RuntimeArchitecture));
+
             // ReferenceTestTasks is workaround for https://github.com/dotnet/sdk/issues/2482
-            deploymentParameters.AdditionalPublishParameters = "AppHost";
             var deploymentResult = await DeployAsync(deploymentParameters);
 
             Assert.True(File.Exists(Path.Combine(deploymentResult.ContentRoot, "InProcessWebSite.exe")));
diff --git a/src/Servers/IIS/IIS/test/testassets/InProcessForwardsCompatWebSite/InProcessWebSite.csproj b/src/Servers/IIS/IIS/test/testassets/InProcessForwardsCompatWebSite/InProcessWebSite.csproj
index 6e148d2245..233c678ae4 100644
--- a/src/Servers/IIS/IIS/test/testassets/InProcessForwardsCompatWebSite/InProcessWebSite.csproj
+++ b/src/Servers/IIS/IIS/test/testassets/InProcessForwardsCompatWebSite/InProcessWebSite.csproj
@@ -8,11 +8,9 @@
   </PropertyGroup>
 
   <ItemGroup Condition="'$(OS)' == 'Windows_NT'">
-    <!-- UseAppHost is a workaround for https://github.com/aspnet/websdk/issues/422 -->
-    <TestAssetPublishProfile Include="Portable" Properties="UseAppHost=false;TargetFramework=netcoreapp3.0" />
+    <TestAssetPublishProfile Include="Portable" Properties="TargetFramework=netcoreapp3.0" />
     <TestAssetPublishProfile Include="Standalone-x64" Properties="RuntimeIdentifier=win-x64;" />
     <TestAssetPublishProfile Include="Standalone-x86" Properties="RuntimeIdentifier=win-x86;" />
-    <TestAssetPublishProfile Include="AppHost" Properties="RuntimeIdentifier=win-x64;UseAppHost=true;SelfContained=false;" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Servers/IIS/IIS/test/testassets/InProcessWebSite/InProcessWebSite.csproj b/src/Servers/IIS/IIS/test/testassets/InProcessWebSite/InProcessWebSite.csproj
index 877307c1b0..2e364ba379 100644
--- a/src/Servers/IIS/IIS/test/testassets/InProcessWebSite/InProcessWebSite.csproj
+++ b/src/Servers/IIS/IIS/test/testassets/InProcessWebSite/InProcessWebSite.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <Import Project="..\..\..\..\build\testsite.props" />
 
@@ -8,11 +8,9 @@
   </PropertyGroup>
 
   <ItemGroup Condition="'$(OS)' == 'Windows_NT'">
-    <!-- UseAppHost is a workaround for https://github.com/aspnet/websdk/issues/422 -->
-    <TestAssetPublishProfile Include="Portable" Properties="UseAppHost=false;TargetFramework=netcoreapp3.0" />
+    <TestAssetPublishProfile Include="Portable" Properties="TargetFramework=netcoreapp3.0" />
     <TestAssetPublishProfile Include="Standalone-x64" Properties="RuntimeIdentifier=win-x64;" />
     <TestAssetPublishProfile Include="Standalone-x86" Properties="RuntimeIdentifier=win-x86;" />
-    <TestAssetPublishProfile Include="AppHost" Properties="RuntimeIdentifier=win-x64;UseAppHost=true;SelfContained=false;" />
   </ItemGroup>
 
   <ItemGroup>