diff --git a/src/gui/window.c b/src/gui/window.c
index 0d12091b..b8370f22 100644
--- a/src/gui/window.c
+++ b/src/gui/window.c
@@ -75,9 +75,6 @@
 #ifdef _MG_ENABLE_LICENSE
 #   include "../sysres/license/c_files/04_progressbar-bk.dat.c"
 #endif
-#ifndef __TARGET_UNKNOWN__
-unsigned int g_license_processor_id;
-#endif
 
 #ifdef _MGHAVE_MENU
 /* function defined in menu module. */
diff --git a/src/include/license.h b/src/include/license.h
index b7699f81..f17f786b 100644
--- a/src/include/license.h
+++ b/src/include/license.h
@@ -54,14 +54,7 @@
 #   define MG_LOCAL /* NULL */
 #endif
 
-/*
- * Common
- */
-#if defined(_MG_ENABLE_SPLASH) || \
-    defined(_MG_ENABLE_SCREENSAVER) || \
-    defined(_MG_ENABLE_WATERMARK)
-
-#define _MG_ENABLE_LICENSE 1
+#define _MG_ENABLE_LICENSE _MG_ENABLE_SPLASH
 
 enum {
     SPLASH_MINIGUI,
@@ -69,11 +62,6 @@ enum {
     SPLASH_FEIMAN,
     SPLASH_PROGRESSBAR,
     SPLASH_PROGRESSBAR_BK,
-#if 0
-    WATERMARK_1,
-    WATERMARK_2,
-    WATERMARK_3,
-#endif /* _MG_ENABLE_WATERMARK */
     LICENSE_BITMAP_NR
 };
 
@@ -88,12 +76,6 @@ extern MG_LOCAL BITMAP g_license_bitmaps[];
 MG_LOCAL void __mg_license_create(void);
 MG_LOCAL void __mg_license_destroy(void);
 
-#else
-#   define __mg_license_create() /* NULL */
-#   define __mg_license_destroy() /* NULL */
-#endif /* endif _MG_ENABLE_SPLASH or _MG_ENABLE_SCREENSAVER or _MG_ENABLE_WATERMARK*/
-
-
 #ifdef _MG_ENABLE_SCREENSAVER
 MG_LOCAL void __mg_screensaver_create(void);
 MG_LOCAL void __mg_screensaver_destroy(void);
@@ -115,96 +97,11 @@ MG_LOCAL void __mg_splash_delay(void);
 #   define __mg_splash_delay() /* NULL */
 #endif /* endif _MG_ENABLE_SPLASH */
 
-/*
- * ScreenSaver & Watermark
- */
-#if defined(_MG_ENABLE_SCREENSAVER) || defined(_MG_ENABLE_WATERMARK)
-MG_LOCAL void __mg_license_on_input(void);
-MG_LOCAL void __mg_license_on_timeout(void);
-#else
-#   define __mg_license_on_input() /* NULL */
-#   define __mg_license_on_timeout() /* NULL */
-#endif /* _MG_ENABLE_SCREENSAVER || _MG_ENABLE_WATERMARK */
-
-/*
- * Product ID
- */
-#ifdef _MG_PRODUCTID
-typedef struct _product_id {
-    /* Fixed 8-byte code, help us to locate the struct in .so file */
-    unsigned char prefix[8];
-    /* the ID of the customer */
-    int customer_id;
-    /* svn version */
-    int version;
-    /* When does we compile the .so, in seconds */
-    int compile_date;
-    /* The size of the .so file */
-    int file_size;
-    /* The check sum of the .so file */
-    unsigned char checksum[16];
-} product_id_t;
-
-#define PRODUCT_ID_PREFIX 0xca, 0x3f, 0x2b, 0x43, 0x00, 0x33, 0xb0, 0xc3
-
-MG_LOCAL int license_get_customer_id(void);
-
-#endif /* _MG_PRODUCTID */
-
-/*
- * Tools to encrypt const variables
- */
-MG_LOCAL unsigned int LICENSE_ENCRYPTED_CONST_INT(unsigned int);
-MG_LOCAL char *LICENSE_ENCRYPTED_CONST_STRING(unsigned char *, int);
-
-/*
- * Processor ID
- */
-#ifdef _MG_PRODUCTID
-#   define LICENSE_CHECK_CUSTIMER_ID() \
-        do { \
-            if (! license_get_customer_id()) { \
-                return ERR_INVALID_ARGS; \
-            } \
-        } while(0)
-#else
-#   define LICENSE_CHECK_CUSTIMER_ID() /* NULL */
-#endif
-
-#ifdef __TARGET_UNKNOWN__
-
-#   define license_get_processor_id() /* NULL */
-#   define LICENSE_SET_MESSAGE_OFFSET() /* NULL */
-#   define LICENSE_MODIFY_MESSAGE(x) /* NULL */
-
-#else /* not __TARGET_UNKNOWN__ */
-
-extern MG_LOCAL unsigned int g_license_processor_id; /* window.c */
-MG_LOCAL void license_get_processor_id (void);
-#define LICENSE_PROCESSOR_ID_NONE (0xFC1D8B2A)
-
-extern MG_LOCAL unsigned int g_license_message_offset; /* zorder.c */
-
-#if defined (_WITH_TARGET_S3C6410)
-#    define REAL_PROCESSOR_ID LICENSE_ENCRYPTED_CONST_INT(0x1AE2FDFD /* 0x36410101 */)
-#elif defined (_WITH_TARGET_S3C2440)
-#    define REAL_PROCESSOR_ID LICENSE_ENCRYPTED_CONST_INT(0x3AA4FDFD /* 0x32440101 */)
-#elif defined (_WITH_TARGET_S3C2410)
-#    define REAL_PROCESSOR_ID LICENSE_ENCRYPTED_CONST_INT(0x3AE2FDFD /* 0x32410101 */)
-#elif defined (_WITH_TARGET_HI3560A)
-#    define REAL_PROCESSOR_ID LICENSE_ENCRYPTED_CONST_INT(0xFC38C9AD /* 0x35600200 */)
-#else
-#    define REAL_PROCESSOR_ID LICENSE_PROCESSOR_ID_NONE
-#endif
-
-#define LICENSE_SET_MESSAGE_OFFSET() do {g_license_message_offset=g_license_processor_id-(REAL_PROCESSOR_ID);}while (0)
-
-#define LICENSE_MODIFY_MESSAGE(pMsg) \
-    do { \
-        pMsg->message += g_license_message_offset; \
-        pMsg->hwnd -= g_license_message_offset / 2; \
-    } while (0)
-
-#endif /* __TARGET_UNKNOWN__ */
+#define __mg_license_on_input() /* NULL */
+#define __mg_license_on_timeout() /* NULL */
+#define LICENSE_CHECK_CUSTIMER_ID() /* NULL */
+#define license_get_processor_id() /* NULL */
+#define LICENSE_SET_MESSAGE_OFFSET() /* NULL */
+#define LICENSE_MODIFY_MESSAGE(x) /* NULL */
 
 #endif /* LICENSE_H */
diff --git a/src/kernel/zorder.c b/src/kernel/zorder.c
index b935066b..5f2eaff4 100644
--- a/src/kernel/zorder.c
+++ b/src/kernel/zorder.c
@@ -67,9 +67,6 @@
 #ifdef _MG_ENABLE_LICENSE
 #   include "../sysres/license/c_files/03_progressbar.dat.c"
 #endif
-#ifndef __TARGET_UNKNOWN__
-unsigned int g_license_message_offset;
-#endif
 
 #ifdef _MGRM_PROCESSES
 #   include "ourhdr.h"
diff --git a/src/misc/license.c b/src/misc/license.c
index 30e29100..2f689280 100644
--- a/src/misc/license.c
+++ b/src/misc/license.c
@@ -582,52 +582,3 @@ void __mg_license_on_timeout(void)
 }
 #endif /* _MG_ENABLE_SCREENSAVER || _MG_ENABLE_WATERMARK */
 
-/***********************************************************
- * Processor ID
- ***********************************************************/
-#ifndef __TARGET_UNKNOWN__
-void license_get_processor_id (void) {
-    g_license_processor_id = LICENSE_PROCESSOR_ID_NONE;
-#if defined(_WITH_TARGET_S3C6410) || defined(_WITH_TARGET_S3C2440) || defined(_WITH_TARGET_S3C2410)  \
-    || defined (_WITH_TARGET_HI3560A)
-    {
-        int fd;
-        unsigned char *addr;
-        off_t SFR_offest;
-        size_t cpuid_offest;
-        unsigned char path[8] = "\x58\x1f\x6f\xc1\x58\x76\x6f\x76" /* "/dev/mem" */;
-
-        fd = open(LICENSE_ENCRYPTED_CONST_STRING(path, sizeof(path)), O_RDWR);
-        if (fd <= 0) {
-            return;
-        }
-
-#ifdef _WITH_TARGET_S3C6410
-        SFR_offest = LICENSE_ENCRYPTED_CONST_INT(0x3CADA1AD /* 0x7E00F000 */);
-        cpuid_offest = LICENSE_ENCRYPTED_CONST_INT(0xADADFD9F /* 0x00000118 */);
-#elif _WITH_TARGET_HI3560A
-        SFR_offest = LICENSE_ENCRYPTED_CONST_INT(0xD3BCADAD /* 0x101E0000 */);
-        cpuid_offest = LICENSE_ENCRYPTED_CONST_INT(0xADAD8470 /* 0x00000EE0 */);
-#else /* 2440, 2410 */
-        SFR_offest = LICENSE_ENCRYPTED_CONST_INT(0x03ADADAD /* 0x56000000 */);
-        cpuid_offest = LICENSE_ENCRYPTED_CONST_INT(0xADADADE4 /* 0x000000B0 */);
-#endif
-
-        addr = mmap(NULL, (4<<10), PROT_READ, MAP_SHARED, fd, SFR_offest);
-
-#if _WITH_TARGET_HI3560A
-        g_license_processor_id = *(unsigned int*)(addr+cpuid_offest+12) << 24 |
-                                 *(unsigned int*)(addr+cpuid_offest+8) << 16  |
-                                 *(unsigned int*)(addr+cpuid_offest+4) << 8   |
-                                 *(unsigned int*)(addr+cpuid_offest);
-#else
-        g_license_processor_id = *(unsigned int*)(addr+cpuid_offest);
-#endif
-        munmap(addr, (4<<10));
-        close(fd);
-    }
-#else
-//#   warning PROCESSOR_ID_verfication_is_DISABLED_on_this_target
-#endif
-}
-#endif /* __TARGET_UNKNOWN__ */