diff --git a/Assets/Cryville/Crtr/Browsing/ExtensionManager.cs b/Assets/Cryville/Crtr/Browsing/ExtensionManager.cs
index 2f8b7ee..3072231 100644
--- a/Assets/Cryville/Crtr/Browsing/ExtensionManager.cs
+++ b/Assets/Cryville/Crtr/Browsing/ExtensionManager.cs
@@ -26,7 +26,7 @@ namespace Cryville.Crtr.Browsing {
 			return _localRes;
 		}
 		public static void Init(string rootPath) {
-			LoadExtension(typeof(Extensions.Umg.Extension));
+			LoadExtension(typeof(Extensions.Extension));
 			var asms = AppDomain.CurrentDomain.GetAssemblies().Select(a => a.GetName().Name).ToHashSet();
 			var modules = new Queue<ModuleItem>();
 			var extensionDir = new DirectoryInfo(Path.Combine(rootPath, "extensions"));
diff --git a/Assets/Cryville/Crtr/Browsing/LegacyResourceManager.cs b/Assets/Cryville/Crtr/Browsing/LegacyResourceManager.cs
index a3f4298..e788d57 100644
--- a/Assets/Cryville/Crtr/Browsing/LegacyResourceManager.cs
+++ b/Assets/Cryville/Crtr/Browsing/LegacyResourceManager.cs
@@ -1,6 +1,7 @@
 using Cryville.Common;
 using Cryville.Common.Unity;
 using Cryville.Crtr.Extension;
+using Cryville.Crtr.Extensions;
 using Cryville.Crtr.Extensions.Umg;
 using Newtonsoft.Json;
 using System;
@@ -153,8 +154,14 @@ namespace Cryville.Crtr.Browsing {
 					else if (res is FileResource) {
 						var tres = (FileResource)res;
 						DirectoryInfo dest;
+						bool singleFileFlag = false;
 						if (res is ChartResource)
 							dest = new DirectoryInfo(_rootPath + "/charts/" + res.Name);
+						else if (res is ExtensionResource) {
+							dest = new DirectoryInfo(_rootPath + "/extensions");
+							singleFileFlag = true;
+							Popup.Create("Please restart the game to reload the extensions");
+						}
 						else if (res is RulesetResource)
 							dest = new DirectoryInfo(_rootPath + "/rulesets/" + res.Name);
 						else if (res is SkinResource)
@@ -165,10 +172,11 @@ namespace Cryville.Crtr.Browsing {
 							LogAndPopup(3, "Attempt to import unsupported file resource: {0}", res);
 							continue;
 						}
-						if (!dest.Exists) {
+						if (singleFileFlag || !dest.Exists) {
 							dest.Create();
-							tres.Master.CopyTo(Path.Combine(dest.FullName, tres.Master.Extension));
+							tres.Master.CopyTo(Path.Combine(dest.FullName, singleFileFlag ? tres.Master.Name : tres.Master.Extension));
 							foreach (var attachment in tres.Attachments) {
+								if (singleFileFlag) throw new InvalidOperationException("Internal error");
 								attachment.CopyTo(Path.Combine(dest.FullName, attachment.Name));
 							}
 						}
diff --git a/Assets/Cryville/Crtr/Extensions/Umg/Extension.cs b/Assets/Cryville/Crtr/Extensions/Extension.cs
similarity index 80%
rename from Assets/Cryville/Crtr/Extensions/Umg/Extension.cs
rename to Assets/Cryville/Crtr/Extensions/Extension.cs
index 4aa11ac..9c4e379 100644
--- a/Assets/Cryville/Crtr/Extensions/Umg/Extension.cs
+++ b/Assets/Cryville/Crtr/Extensions/Extension.cs
@@ -1,10 +1,12 @@
 using Cryville.Crtr.Extension;
+using Cryville.Crtr.Extensions.Umg;
 using System.Collections.Generic;
 
-namespace Cryville.Crtr.Extensions.Umg {
+namespace Cryville.Crtr.Extensions {
 	public class Extension : ExtensionInterface {
 		public override IEnumerable<ResourceConverter> GetResourceConverters() {
 			return new ResourceConverter[] {
+				new ExtensionImporter(),
 				new ChartResourceImporter(),
 				new RulesetResourceImporter(),
 				new SkinResourceImporter(),
diff --git a/Assets/Cryville/Crtr/Extensions/Umg/Extension.cs.meta b/Assets/Cryville/Crtr/Extensions/Extension.cs.meta
similarity index 100%
rename from Assets/Cryville/Crtr/Extensions/Umg/Extension.cs.meta
rename to Assets/Cryville/Crtr/Extensions/Extension.cs.meta
diff --git a/Assets/Cryville/Crtr/Extensions/ExtensionImporter.cs b/Assets/Cryville/Crtr/Extensions/ExtensionImporter.cs
new file mode 100644
index 0000000..409898a
--- /dev/null
+++ b/Assets/Cryville/Crtr/Extensions/ExtensionImporter.cs
@@ -0,0 +1,18 @@
+using Cryville.Crtr.Extension;
+using System.IO;
+
+namespace Cryville.Crtr.Extensions {
+	internal class ExtensionImporter : ResourceConverter {
+		static readonly string[] SUPPORTED_FORMATS = { ".dll" };
+		public override string[] GetSupportedFormats() {
+			return SUPPORTED_FORMATS;
+		}
+
+		public override void Convert(FileInfo file, ConversionSession ses) {
+			ses.AddResource(new ExtensionResource(file.Name, file));
+		}
+	}
+	public class ExtensionResource : FileResource {
+		public ExtensionResource(string name, FileInfo master) : base(name, master) { }
+	}
+}
diff --git a/Assets/Cryville/Crtr/Extensions/ExtensionImporter.cs.meta b/Assets/Cryville/Crtr/Extensions/ExtensionImporter.cs.meta
new file mode 100644
index 0000000..194393f
--- /dev/null
+++ b/Assets/Cryville/Crtr/Extensions/ExtensionImporter.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: c048eb442e4b9304eb0637599be1084d
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: