diff --git a/bacnet-stack/stdbool.h b/bacnet-stack/stdbool.h
deleted file mode 100644
index 29b9a5e4..00000000
--- a/bacnet-stack/stdbool.h
+++ /dev/null
@@ -1,28 +0,0 @@
-#ifndef STDBOOL_H
-#define STDBOOL_H
-
-// C99 Boolean types for compilers without C99 support
-
-#ifndef __cplusplus
-  typedef int _Bool;
-  #ifndef bool
-    #define bool _Bool
-  #endif
-  #ifndef true
-    #define true 1
-  #endif
-  #ifndef false
-    #define false 0
-  #endif
-  #define __bool_true_false_are_defined 1 
-#endif
-
-#ifndef FALSE
-  #define FALSE 0
-#endif
-
-#ifndef TRUE
-  #define TRUE  1
-#endif
-
-#endif
diff --git a/bacnet-stack/stdint.h b/bacnet-stack/stdint.h
deleted file mode 100644
index b66446d4..00000000
--- a/bacnet-stack/stdint.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Defines the standard integer types that are used in code
-// for the x86 processor and Borland Compiler
-
-#ifndef STDINT_H
-#define STDINT_H
-
-#include <stddef.h>
-
-#define TRUE      1
-#define FALSE     0
-
-#define MSB       7
-#define LSB       0
-
-typedef int       bool;
-typedef unsigned char       uint8_t;   // 1 byte  0 to 255
-typedef signed char         int8_t;    // 1 byte -127 to 127
-typedef unsigned short      uint16_t;  // 2 bytes 0 to 65535
-typedef signed short        int16_t;   // 2 bytes -32767 to 32767
-//typedef unsigned short long uint24_t;  // 3 bytes 0 to 16777215
-typedef unsigned long       uint32_t;  // 4 bytes 0 to 4294967295
-typedef signed long         int32_t;   // 4 bytes -2147483647 to 2147483647
-// typedef signed long long   int64_t;
-// typedef unsigned long long uint64_t;
-
-#endif // STDINT_H