# System.IO.Pipes.AccessControl

``` diff
 {
     namespace System.IO.Pipes {
+        public static class AnonymousPipeServerStreamAcl {
+            public static AnonymousPipeServerStream Create(PipeDirection direction, HandleInheritability inheritability, int bufferSize, PipeSecurity pipeSecurity);
+        }
+        public static class NamedPipeServerStreamAcl {
+            public static NamedPipeServerStream Create(string pipeName, PipeDirection direction, int maxNumberOfServerInstances, PipeTransmissionMode transmissionMode, PipeOptions options, int inBufferSize, int outBufferSize, PipeSecurity pipeSecurity, HandleInheritability inheritability = 0, PipeAccessRights additionalAccessRights = );
+        }
     }
 }
```

