diff --git a/docs/CREDITS b/docs/CREDITS
index 74f359c2c3..8e087e0655 100644
--- a/docs/CREDITS
+++ b/docs/CREDITS
@@ -411,6 +411,7 @@ Tadayuki Nishizono
 Jun Gu
 Daniel Weck
 Clément Pit-Claudel
+Jelle Geerts
 
 The libmad team
 The wavpack team
diff --git a/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/win.h b/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/win.h
index d578085c29..04a08c609f 100644
--- a/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/win.h
+++ b/utils/zenutils/libraries/beecrypt-4.1.2/beecrypt/win.h
@@ -39,7 +39,7 @@
 # else
 #  error Unknown CPU type in MetroWerks CodeWarrior
 # endif
-#elif defined(_MSC_VER)
+#elif defined(_MSC_VER) || defined(__MINGW32__)
 # if defined(_M_IX86)
 #  define WORDS_BIGENDIAN		0
 #  define ROTL32(x, s) _rotl(x, s)
@@ -51,7 +51,7 @@
 # error Unknown compiler for WIN32
 #endif
 
-#if defined(_MSC_VER) || __MWERKS__
+#if defined(_MSC_VER) || defined(__MINGW32__) || __MWERKS__
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -128,6 +128,8 @@ typedef unsigned __int64 uint64_t;
 
 typedef long off_t;
 
+#elif defined(__MINGW32__)
+#include <stdint.h>
 #endif
 
 #define MP_WBITS	32U
diff --git a/utils/zenutils/source/shared/updater.cpp b/utils/zenutils/source/shared/updater.cpp
index 3944863533..7efac3d373 100644
--- a/utils/zenutils/source/shared/updater.cpp
+++ b/utils/zenutils/source/shared/updater.cpp
@@ -50,19 +50,18 @@ const char* zen::find_firmware_key(const byte* buffer, size_t len)
 
 dword zen::find_firmware_offset(byte* buffer, size_t len)
 {
-    for (dword i = 0; i < static_cast<dword>(len); i += 0x10)
+    for (dword i = 0; i < static_cast<dword>(len); i += 4)
     {
         dword size = *(dword*)&buffer[i];
-        if (size < (i + len) && size > (len >> 1))
+        if (buffer[i + sizeof(dword)] != 0
+            && buffer[i + sizeof(dword) + 1] != 0
+            && buffer[i + sizeof(dword) + 2] != 0
+            && buffer[i + sizeof(dword) + 3] != 0)
         {
-            if (buffer[i + sizeof(dword)] != 0
-                && buffer[i + sizeof(dword) + 1] != 0
-                && buffer[i + sizeof(dword) + 2] != 0
-                && buffer[i + sizeof(dword) + 3] != 0)
-            {
-                return i;
-            }
+            return i;
         }
+        if(i > 0xFF) /* Arbitrary guess */
+            return 0;
     }
     return 0;
 }
@@ -105,7 +104,6 @@ bool zen::crypt_firmware(const char* key, byte* buffer, size_t len)
     unsigned int tmp = 0;
     int key_length = strlen(key);
     
-    strcpy(key_cpy, key);
     for(i=0; i < strlen(key); i++)
         key_cpy[i] = key[i] - 1;