diff --git a/mdl/m_pipe.pas b/mdl/m_pipe.pas
new file mode 100644
index 0000000..0700c87
--- /dev/null
+++ b/mdl/m_pipe.pas
@@ -0,0 +1,24 @@
+Unit m_Pipe;
+
+{$I M_OPS.PAS}
+
+Interface
+
+{$IFDEF UNIX}
+  Uses m_Pipe_Unix;
+  Type TPipe = Class(TPipeUnix);
+{$ENDIF}
+
+{$IFDEF WINDOWS}
+  Uses m_Pipe_Disk;
+  Type TPipe = Class(TPipeDisk);
+{$ENDIF}
+
+{$IFDEF OS2}
+  Uses m_Pipe_Disk;
+  Type TPipe = Class(TPipeDisk);
+{$ENDIF}
+
+Implementation
+
+End.
\ No newline at end of file