diff --git a/.travis.yml b/.travis.yml
index bbcb8c496d..c1ced7cb87 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,7 +37,7 @@ deploy:
   api_key:
     secure: N9hansErZKHl7G5Ed/hcBgwcvLuRjB7YAskAvSAYB+luacV6rSK7Vlm/4NyjaZCwWv5wOdBphle2S4yZLRDTdMwLrdQWwWYeZI60kE22c1amKJaf6j5ai2u/P3bt55klQ2yO2U/LacwHVoRtJlVdwSAXuDQ3zMd88VbBModQyxE=
   file_glob: true
-  file: artifacts/package/*${TRAVIS_OS_NAME}*.tar.gz
+  file: artifacts/package/*.tar.gz
   skip_cleanup: true
   on:
     repo: OmniSharp/omnisharp-roslyn
diff --git a/build.cake b/build.cake
index c27be6791b..e37d7c06b5 100644
--- a/build.cake
+++ b/build.cake
@@ -423,13 +423,13 @@ Task("OnlyPublish")
             }
 
             var buildIdentifier = $"{runtimeShort}-{framework}";
-            // Linux + net451 is renamed to Mono
-            if (runtimeShort.Contains("ubuntu-") && framework.Equals("net451"))
+            // Travis/Linux + default + net451 is renamed to Mono
+            if (string.Equals(EnvironmentVariable("TRAVIS_OS_NAME"), "linux") && runtime.Equals("default") && framework.Equals("net451"))
             {
                 buildIdentifier ="linux-mono";
             }
-            // No need to package for <!win7> + net451
-            else if (!runtimeShort.Contains("win7-") && framework.Equals("net451"))
+            // No need to archive for other Travis + net451 combinations
+            else if (EnvironmentVariable("TRAVIS_OS_NAME") != null && framework.Equals("net451"))
             {
                 continue;
             }
diff --git a/src/OmniSharp.MSBuild/MSBuildLogForwarder.cs b/src/OmniSharp.MSBuild/MSBuildLogForwarder.cs
index 79966351c1..e34ba84943 100644
--- a/src/OmniSharp.MSBuild/MSBuildLogForwarder.cs
+++ b/src/OmniSharp.MSBuild/MSBuildLogForwarder.cs
@@ -1,4 +1,3 @@
-#if DNX451
 using System;
 using System.Collections.Generic;
 using Microsoft.Extensions.Logging;
@@ -72,5 +71,4 @@ private void OnWarning(object sender, Microsoft.Build.Framework.BuildWarningEven
             });
         }
     }
-}
-#endif
+}
\ No newline at end of file
diff --git a/src/OmniSharp.MSBuild/MSBuildProjectSystem.cs b/src/OmniSharp.MSBuild/MSBuildProjectSystem.cs
index bdd9304ff5..3ebdeb90be 100644
--- a/src/OmniSharp.MSBuild/MSBuildProjectSystem.cs
+++ b/src/OmniSharp.MSBuild/MSBuildProjectSystem.cs
@@ -127,9 +127,7 @@ public void Initalize(IConfiguration configuration)
                 }
 
                 var compilationOptions = new CSharpCompilationOptions(projectFileInfo.OutputKind);
-#if DNX451
                 compilationOptions = compilationOptions.WithAssemblyIdentityComparer(DesktopAssemblyIdentityComparer.Default);
-#endif
 
                 if (projectFileInfo.AllowUnsafe)
                 {
@@ -317,10 +315,8 @@ private void UpdateProject(ProjectFileInfo projectFileInfo)
                     {
                         continue;
                     }
-#if DNX451
                     var analyzerReference = new AnalyzerFileReference(analyzerPath, new SimpleAnalyzerAssemblyLoader());
                     project.AddAnalyzerReference(analyzerReference);
-#endif
                 }
             }
 
diff --git a/src/OmniSharp.MSBuild/ProjectFile/ProjectFileInfo.cs b/src/OmniSharp.MSBuild/ProjectFile/ProjectFileInfo.cs
index dca3053878..1d1f3a62b7 100644
--- a/src/OmniSharp.MSBuild/ProjectFile/ProjectFileInfo.cs
+++ b/src/OmniSharp.MSBuild/ProjectFile/ProjectFileInfo.cs
@@ -3,10 +3,8 @@
 using System.IO;
 using System.Linq;
 using System.Runtime.Versioning;
-#if DNX451
 using Microsoft.Build.BuildEngine;
 using Microsoft.Build.Evaluation;
-#endif
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.CSharp;
 using Microsoft.Extensions.Logging;
@@ -54,7 +52,6 @@ public static ProjectFileInfo Create(MSBuildOptions options, ILogger logger, str
             var projectFileInfo = new ProjectFileInfo();
             projectFileInfo.ProjectFilePath = projectFilePath;
 
-#if DNX451
             if (!PlatformHelper.IsMono)
             {
                 var properties = new Dictionary<string, string>
@@ -215,9 +212,6 @@ public static ProjectFileInfo Create(MSBuildOptions options, ILogger logger, str
                     projectFileInfo.DefineConstants = defineConstants.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries).Distinct().ToList();
                 }
             }
-#else
-            // TODO: Shell out to msbuild/xbuild here?
-#endif
             return projectFileInfo;
         }
 
@@ -240,7 +234,6 @@ public static ProjectFileInfo Create(MSBuildOptions options, ILogger logger, str
         }
     }
 
-    #if DNX451
     static class DictionaryExt
     {
         public static string GetPropertyValue(this Dictionary<string, BuildProperty> dict, string key)
@@ -250,5 +243,4 @@ public static string GetPropertyValue(this Dictionary<string, BuildProperty> dic
                 : null;
         }
     }
-    #endif
 }
diff --git a/src/OmniSharp.Nuget/OmniSharpSourceRepositoryProvider.cs b/src/OmniSharp.Nuget/OmniSharpSourceRepositoryProvider.cs
index 879febba9c..bfdae5efea 100644
--- a/src/OmniSharp.Nuget/OmniSharpSourceRepositoryProvider.cs
+++ b/src/OmniSharp.Nuget/OmniSharpSourceRepositoryProvider.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using Microsoft.CodeAnalysis;
-#if DNX451
+#if NET451
 using NuGet.Protocol.Core.Types;
 using NuGet.Configuration;
 using NuGet.Protocol.Core.v2;
@@ -11,7 +11,7 @@
 
 namespace OmniSharp.NuGet
 {
-#if DNX451
+#if NET451
     public class OmniSharpSourceRepositoryProvider : ISourceRepositoryProvider
     {
         private static PackageSource[] DefaultPrimarySources = {
diff --git a/src/OmniSharp.Nuget/Services/PackageSearchService.cs b/src/OmniSharp.Nuget/Services/PackageSearchService.cs
index 5d3aebd49c..fac6e1a25e 100644
--- a/src/OmniSharp.Nuget/Services/PackageSearchService.cs
+++ b/src/OmniSharp.Nuget/Services/PackageSearchService.cs
@@ -7,7 +7,7 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Recommendations;
 using Microsoft.CodeAnalysis.Text;
-#if DNX451
+#if NET451
 using NuGet.Logging;
 using NuGet.Packaging.Core;
 using NuGet.Protocol.Core.Types;
@@ -20,7 +20,7 @@
 
 namespace OmniSharp
 {
-#if DNX451
+#if NET451
     [OmniSharpHandler(OmnisharpEndpoints.PackageSearch, "NuGet")]
     public class PackageSearchService : RequestHandler<PackageSearchRequest, PackageSearchResponse>
     {
diff --git a/src/OmniSharp.Nuget/Services/PackageSourceService.cs b/src/OmniSharp.Nuget/Services/PackageSourceService.cs
index 6cd709712d..210b869681 100644
--- a/src/OmniSharp.Nuget/Services/PackageSourceService.cs
+++ b/src/OmniSharp.Nuget/Services/PackageSourceService.cs
@@ -7,7 +7,7 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Recommendations;
 using Microsoft.CodeAnalysis.Text;
-#if DNX451
+#if NET451
 using NuGet.Logging;
 using NuGet.Packaging.Core;
 using NuGet.Protocol.Core.Types;
@@ -20,7 +20,7 @@
 
 namespace OmniSharp
 {
-#if DNX451
+#if NET451
     [OmniSharpHandler(OmnisharpEndpoints.PackageSource, "NuGet")]
     public class PackageSourceService : RequestHandler<PackageSourceRequest, PackageSourceResponse>
     {
diff --git a/src/OmniSharp.Nuget/Services/PackageVersionService.cs b/src/OmniSharp.Nuget/Services/PackageVersionService.cs
index adc92c609e..92bc7272a5 100644
--- a/src/OmniSharp.Nuget/Services/PackageVersionService.cs
+++ b/src/OmniSharp.Nuget/Services/PackageVersionService.cs
@@ -7,7 +7,7 @@
 using Microsoft.CodeAnalysis;
 using Microsoft.CodeAnalysis.Recommendations;
 using Microsoft.CodeAnalysis.Text;
-#if DNX451
+#if NET451
 using NuGet.Logging;
 using NuGet.Packaging.Core;
 using NuGet.Protocol.Core.Types;
@@ -20,7 +20,7 @@
 
 namespace OmniSharp
 {
-#if DNX451
+#if NET451
     [OmniSharpHandler(OmnisharpEndpoints.PackageVersion, "NuGet")]
     public class PackageVersionService : RequestHandler<PackageVersionRequest, PackageVersionResponse>
     {
diff --git a/src/OmniSharp.Roslyn.CSharp/Workers/Refactoring/FixUsings.cs b/src/OmniSharp.Roslyn.CSharp/Workers/Refactoring/FixUsings.cs
index 9aa0c20acf..3e6a9d42de 100644
--- a/src/OmniSharp.Roslyn.CSharp/Workers/Refactoring/FixUsings.cs
+++ b/src/OmniSharp.Roslyn.CSharp/Workers/Refactoring/FixUsings.cs
@@ -39,7 +39,7 @@ public async Task<FixUsingsResponse> FixUsings(OmnisharpWorkspace workspace, IEn
             _semanticModel = await document.GetSemanticModelAsync();
             await AddMissingUsings(codeActionProviders);
             await RemoveUsings(codeActionProviders);
-#if DNX451
+#if NET451
             await SortUsings();
 #endif
             await TryAddLinqQuerySyntax();
@@ -167,7 +167,7 @@ private async Task RemoveUsings(IEnumerable<ICodeActionProvider> codeActionProvi
             return;
         }
 
-#if DNX451
+#if NET451
         private async Task SortUsings()
         {
             // Sort usings