diff --git a/util/cbfstool/lzma/C/LzmaDec.c b/util/cbfstool/lzma/C/LzmaDec.c
index 7ba32b9b27..af55858988 100644
--- a/util/cbfstool/lzma/C/LzmaDec.c
+++ b/util/cbfstool/lzma/C/LzmaDec.c
@@ -128,7 +128,7 @@ Out:
     = kMatchSpecLenStart + 2 : State Init Marker
 */
 
-static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, size_t limit_parm, const uint8_t *bufLimit)
+static int LzmaDec_DecodeReal(CLzmaDec *p, size_t limit_parm, const uint8_t *bufLimit)
 {
   CLzmaProb *probs = p->probs;
 
@@ -425,7 +425,7 @@ static int MY_FAST_CALL LzmaDec_DecodeReal(CLzmaDec *p, size_t limit_parm, const
   return SZ_OK;
 }
 
-static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, size_t limit)
+static void LzmaDec_WriteRem(CLzmaDec *p, size_t limit)
 {
   if (p->remainLen != 0 && p->remainLen < kMatchSpecLenStart)
   {
@@ -451,7 +451,7 @@ static void MY_FAST_CALL LzmaDec_WriteRem(CLzmaDec *p, size_t limit)
   }
 }
 
-static int MY_FAST_CALL LzmaDec_DecodeReal2(CLzmaDec *p, size_t limit, const uint8_t *bufLimit)
+static int LzmaDec_DecodeReal2(CLzmaDec *p, size_t limit, const uint8_t *bufLimit)
 {
   do
   {
diff --git a/util/cbfstool/lzma/C/LzmaEnc.c b/util/cbfstool/lzma/C/LzmaEnc.c
index 318b0abcf2..83012d8a07 100644
--- a/util/cbfstool/lzma/C/LzmaEnc.c
+++ b/util/cbfstool/lzma/C/LzmaEnc.c
@@ -506,7 +506,7 @@ static void RangeEnc_FlushStream(CRangeEnc *p)
   p->buf = p->bufBase;
 }
 
-static void MY_FAST_CALL RangeEnc_ShiftLow(CRangeEnc *p)
+static void RangeEnc_ShiftLow(CRangeEnc *p)
 {
   if ((uint32_t)p->low < (uint32_t)0xFF000000 || (int)(p->low >> 32) != 0)
   {
@@ -776,7 +776,7 @@ static void LenEnc_SetPrices(CLenEnc *p, uint32_t posState, uint32_t numSymbols,
     prices[i] = b1 + RcTree_GetPrice(p->high, kLenNumHighBits, i - kLenNumLowSymbols - kLenNumMidSymbols, ProbPrices);
 }
 
-static void MY_FAST_CALL LenPriceEnc_UpdateTable(CLenPriceEnc *p, uint32_t posState, uint32_t *ProbPrices)
+static void LenPriceEnc_UpdateTable(CLenPriceEnc *p, uint32_t posState, uint32_t *ProbPrices)
 {
   LenEnc_SetPrices(&p->p, posState, p->tableSize, p->prices[posState], ProbPrices);
   p->counters[posState] = p->tableSize;
diff --git a/util/cbfstool/lzma/C/Types.h b/util/cbfstool/lzma/C/Types.h
index 0834844d87..e655f32013 100644
--- a/util/cbfstool/lzma/C/Types.h
+++ b/util/cbfstool/lzma/C/Types.h
@@ -8,9 +8,6 @@
 #include <stdint.h>
 #include <stdbool.h>
 
-#ifdef _WIN32
-#include <windows.h>
-#endif
 
 #define SZ_OK 0
 
@@ -31,43 +28,12 @@
 #define SZ_ERROR_NO_ARCHIVE 17
 
 typedef int SRes;
-
-#ifdef _WIN32
-typedef DWORD WRes;
-#else
-typedef int WRes;
-#endif
+typedef int WRes; /* This was DWORD for _WIN32. That's uint32_t */
 
 #ifndef RINOK
 #define RINOK(x) { int __result__ = (x); if (__result__ != 0) return __result__; }
 #endif
 
-
-#ifdef _WIN32
-#define MY_STD_CALL __stdcall
-#else
-#define MY_STD_CALL
-#endif
-
-#ifdef _MSC_VER
-
-#if _MSC_VER >= 1300
-#define MY_NO_INLINE __declspec(noinline)
-#else
-#define MY_NO_INLINE
-#endif
-
-#define MY_CDECL __cdecl
-#define MY_FAST_CALL __fastcall
-
-#else
-
-#define MY_CDECL
-#define MY_FAST_CALL
-
-#endif
-
-
 /* The following interfaces use first parameter as pointer to structure */
 
 typedef struct