diff --git a/source/Cosmos.System2_Plugs/Interop/WinsockImpl.cs b/source/Cosmos.System2_Plugs/Interop/WinsockImpl.cs
new file mode 100644
index 0000000000..a20c5fedee
--- /dev/null
+++ b/source/Cosmos.System2_Plugs/Interop/WinsockImpl.cs
@@ -0,0 +1,16 @@
+using IL2CPU.API.Attribs;
+using System;
+using System.Net.Sockets;
+
+namespace Cosmos.Core_Plugs.Interop
+{
+    [Plug("Interop+Winsock, System.Net.Sockets", IsOptional = true)]
+    class WinsockImpl
+    {
+        [PlugMethod(Signature = "System_Net_Sockets_SocketError__Interop_Winsock_shutdown_System_Net_Sockets_SafeSocketHandle__System_Int32_")]
+        public static SocketError shutdown(SafeSocketHandle socketHandle, int how)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}
diff --git a/source/Cosmos.System2_Plugs/System/IO/StreamImpl.cs b/source/Cosmos.System2_Plugs/System/IO/StreamImpl.cs
deleted file mode 100644
index 80d1d8b9de..0000000000
--- a/source/Cosmos.System2_Plugs/System/IO/StreamImpl.cs
+++ /dev/null
@@ -1,29 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Net.Sockets;
-using System.Text;
-using System.Threading.Tasks;
-using IL2CPU.API.Attribs;
-
-namespace Cosmos.System_Plugs.System.IO
-{
-    [Plug(Target = typeof(Stream))]
-    public static class StreamImpl
-    {
-        public static int Read(Stream aThis, Span<byte> buffer)
-        {
-            throw new NotImplementedException();
-        }
-
-        public static void Dispose(Stream aThis)
-        {
-            throw new NotImplementedException();
-        }
-
-        public static void Dispose(Stream aThis, bool disposing)
-        {
-            throw new NotImplementedException();
-        }
-    }
-}