diff --git a/lib/native/win32/ia32/16/edge_coreclr.node b/lib/native/win32/ia32/16/edge_coreclr.node
index d07f27fb..ab2406aa 100644
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diff --git a/lib/native/win32/ia32/16/edge_nativeclr.node b/lib/native/win32/ia32/16/edge_nativeclr.node
index b7e62d06..171cb4e6 100644
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diff --git a/lib/native/win32/ia32/18/edge_coreclr.node b/lib/native/win32/ia32/18/edge_coreclr.node
index 50bba30e..f59855f4 100644
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diff --git a/lib/native/win32/ia32/18/edge_nativeclr.node b/lib/native/win32/ia32/18/edge_nativeclr.node
index 7d978dfd..0eb31ec5 100644
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diff --git a/lib/native/win32/ia32/20/edge_coreclr.node b/lib/native/win32/ia32/20/edge_coreclr.node
index 1603d3aa..988ad850 100644
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diff --git a/lib/native/win32/ia32/20/edge_nativeclr.node b/lib/native/win32/ia32/20/edge_nativeclr.node
index 37ea87b7..2fd8ddb9 100644
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diff --git a/lib/native/win32/ia32/20/node.version b/lib/native/win32/ia32/20/node.version
index c1302226..2a393af5 100644
--- a/lib/native/win32/ia32/20/node.version
+++ b/lib/native/win32/ia32/20/node.version
@@ -1 +1 @@
-20.18.0
\ No newline at end of file
+20.18.0
diff --git a/lib/native/win32/x64/16/edge_coreclr.node b/lib/native/win32/x64/16/edge_coreclr.node
index a198c776..1b97fe5e 100644
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diff --git a/lib/native/win32/x64/16/edge_nativeclr.node b/lib/native/win32/x64/16/edge_nativeclr.node
index 4a18d0e7..0e6e427b 100644
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diff --git a/lib/native/win32/x64/18/edge_coreclr.node b/lib/native/win32/x64/18/edge_coreclr.node
index 26e61d81..f1007613 100644
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diff --git a/lib/native/win32/x64/18/edge_nativeclr.node b/lib/native/win32/x64/18/edge_nativeclr.node
index 88117d12..85e9593f 100644
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diff --git a/lib/native/win32/x64/20/edge_coreclr.node b/lib/native/win32/x64/20/edge_coreclr.node
index 907e89a6..dea2e14b 100644
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diff --git a/lib/native/win32/x64/20/edge_nativeclr.node b/lib/native/win32/x64/20/edge_nativeclr.node
index d651b9a6..3b573e3e 100644
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diff --git a/lib/native/win32/x64/20/node.version b/lib/native/win32/x64/20/node.version
index c1302226..2a393af5 100644
--- a/lib/native/win32/x64/20/node.version
+++ b/lib/native/win32/x64/20/node.version
@@ -1 +1 @@
-20.18.0
\ No newline at end of file
+20.18.0
diff --git a/lib/native/win32/x64/22/edge_coreclr.node b/lib/native/win32/x64/22/edge_coreclr.node
index 9c825f13..0502c4ae 100644
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diff --git a/lib/native/win32/x64/22/edge_nativeclr.node b/lib/native/win32/x64/22/edge_nativeclr.node
index a155d7bc..7bd1837a 100644
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diff --git a/lib/native/win32/x64/22/node.version b/lib/native/win32/x64/22/node.version
index 2fdffdec..ec7ba0e9 100644
--- a/lib/native/win32/x64/22/node.version
+++ b/lib/native/win32/x64/22/node.version
@@ -1 +1 @@
-22.10.0
\ No newline at end of file
+22.10.0
diff --git a/lib/native/win32/x64/23/edge_coreclr.node b/lib/native/win32/x64/23/edge_coreclr.node
index 38d204bb..f7b7363e 100644
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diff --git a/lib/native/win32/x64/23/edge_nativeclr.node b/lib/native/win32/x64/23/edge_nativeclr.node
index 7da282a7..d02963f5 100644
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diff --git a/lib/native/win32/x64/23/node.version b/lib/native/win32/x64/23/node.version
index f842f93a..84b76f4d 100644
--- a/lib/native/win32/x64/23/node.version
+++ b/lib/native/win32/x64/23/node.version
@@ -1 +1 @@
-23.0.0
\ No newline at end of file
+23.0.0
diff --git a/src/CoreCLREmbedding/coreclrembedding.cpp b/src/CoreCLREmbedding/coreclrembedding.cpp
index 52ebce40..17ddddab 100644
--- a/src/CoreCLREmbedding/coreclrembedding.cpp
+++ b/src/CoreCLREmbedding/coreclrembedding.cpp
@@ -371,14 +371,44 @@ HRESULT CoreClrEmbedding::Initialize(BOOL debugMode)
 	if (mode != host_mode_t::standalone)
 	{
 		trace::verbose(_X("CoreClrEmbedding::Initialize - host mode: muxer"));
-		pal::string_t sdkDirectory;
 
-		fx_muxer_t::resolve_sdk_dotnet_path(dotnetDirectory, &sdkDirectory);
-		
-		pal::string_t dotnetAssemblyPath(sdkDirectory);
-		append_path(&dotnetAssemblyPath, _X("dotnet.dll"));
+		std::vector<pal::string_t> appConfigFiles;
+		pal::readdir(edgeAppDir, _X("*.runtimeconfig.json"), &appConfigFiles);
+		pal::string_t runtimeconfigfile;
 
-		get_runtime_config_paths_from_app(dotnetAssemblyPath, &configFile, &devConfigFile);
+		if (appConfigFiles.size() > 1)
+		{
+			std::vector<char> edgeAppDirCstr;
+			pal::pal_clrstring(edgeAppDir, &edgeAppDirCstr);
+
+			throwV8Exception("CoreClrEmbedding::Initialize - Multiple app runtimeconfig files (*.runtimeconfig.json) files exist in the Edge.js application directory (%s).", edgeAppDirCstr.data());
+			return E_FAIL;
+		}
+		else if (appConfigFiles.size() == 1)
+		{
+			runtimeconfigfile = pal::string_t(edgeAppDir);
+			append_path(&runtimeconfigfile, appConfigFiles[0].c_str());
+
+			trace::info(_X("CoreClrEmbedding::Initialize - Exactly one (%s) app runtimeconfig file found in the Edge app directory, using it"), runtimeconfigfile.c_str());
+			configFile = pal::string_t(runtimeconfigfile);
+		}
+		else // No app runtimeconfigfile found, using sdk runtimeconfig
+		{
+			pal::string_t sdkDirectory;
+
+			fx_muxer_t::resolve_sdk_dotnet_path(dotnetDirectory, &sdkDirectory);
+			
+
+			if (sdkDirectory.length() == 0)
+			{
+				throwV8Exception("CoreClrEmbedding::Initialize - Could not find any runtimeconfig file ([appname].runtimeconfig.json in app folder nor dotnet.runtimeconfig.json in sdk folder)");
+				return E_FAIL;
+			}
+
+			runtimeconfigfile = pal::string_t(sdkDirectory);
+			append_path(&runtimeconfigfile, _X("dotnet.dll"));
+			get_runtime_config_paths_from_app(runtimeconfigfile, &configFile, &devConfigFile);
+		}
 	}
 
 	else
@@ -775,4 +805,4 @@ CoreClrGcHandle CoreClrEmbedding::CompileFunc(const void* options, const int pay
         trace::info(_X("CoreClrEmbedding::CompileFunc - Finished"));
         return function;
     }
-}
+}
\ No newline at end of file