diff --git a/MachineId.cpp b/MachineId.cpp
index fe4d3e0..b65e440 100644
--- a/MachineId.cpp
+++ b/MachineId.cpp
@@ -13,6 +13,7 @@
 
 //------------------ Include -------------------------------------------------
 #include "stdafx.h"
+#define NOMINMAX
 #include <windows.h> 
 #include <winioctl.h> 
 #include "MachineId.h"
diff --git a/RegForMachineId.cpp b/RegForMachineId.cpp
index 69202bf..5ac6ed6 100644
--- a/RegForMachineId.cpp
+++ b/RegForMachineId.cpp
@@ -13,6 +13,7 @@
 
 //------------------ Include -------------------------------------------------
 #include "stdafx.h"
+#define NOMINMAX
 #include <windows.h> 
 #include "RegForMachineId.h"
 #include "/EgtDev/Include/EGnStringConverter.h"