--- mstools/samples/sdktools/netwatch/utils.c	2018/08/09 18:24:28	1.1.1.1
+++ mstools/samples/sdktools/netwatch/utils.c	2018/08/09 18:27:28	1.1.1.2
@@ -148,7 +148,13 @@ GetSystemErrMessage(DWORD dwError)
     LPTSTR  szErrMessage = NULL;
     HMODULE hLibrary;
 
-    if(FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+	if(dwError == ERROR_INVALID_LEVEL)
+	{
+		// This err usually occurs when we try to view a WFW machine.
+		// So, the PM decided to use our own version of the err msg.
+		szErrMessage = AllocAndLoadString(IDS_ERRWFW);
+	} 
+	else if(FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
         NULL, dwError, 0/*LANG_USER_DEFAULT*/, (LPTSTR)&szErrMessage, 0, NULL))
     {
         szErrMessage[lstrlen(szErrMessage) - 2] = '\0'; // remove /r/n