diff --git a/reactos/dll/win32/kernel32/CMakeLists.txt b/reactos/dll/win32/kernel32/CMakeLists.txt
index caf39abae86..5b1e960d522 100644
--- a/reactos/dll/win32/kernel32/CMakeLists.txt
+++ b/reactos/dll/win32/kernel32/CMakeLists.txt
@@ -75,6 +75,7 @@ list(APPEND SOURCE
     winnls/string/lang.c
     winnls/string/lcformat.c
     winnls/string/lstring.c
+    winnls/string/mui.c
     winnls/string/nls.c
     winnls/string/sortkey.c
     kernel32.rc
diff --git a/reactos/dll/win32/kernel32/winnls/string/mui.c b/reactos/dll/win32/kernel32/winnls/string/mui.c
new file mode 100644
index 00000000000..5c95b22756e
--- /dev/null
+++ b/reactos/dll/win32/kernel32/winnls/string/mui.c
@@ -0,0 +1,183 @@
+/*
+ * COPYRIGHT:       See COPYING in the top level directory
+ * PROJECT:         ReactOS system libraries
+ * FILE:            dll/win32/kernel32/winnls/mui.c
+ * PURPOSE:         MUI support functions
+ * PROGRAMMERS:     Edison Henrique Andreassy (ehasis@hotmail.com)
+ */
+
+/* INCLUDES ******************************************************************/
+#include <k32.h>
+
+#define NDEBUG
+#include <debug.h>
+
+/*
+  References:
+   Evolution of MUI Support across Windows Versions: http://msdn.microsoft.com/en-US/library/ee264317.aspx 
+   Comparing Windows XP Professional Multilingual Options: http://technet.microsoft.com/en-us/library/bb457045.aspx
+
+  More info:
+   http://msdn.microsoft.com/en-us/goglobal/bb978454.aspx 
+   http://msdn.microsoft.com/en-us/library/dd319074.aspx 
+*/
+
+/* FUNCTIONS *****************************************************************/
+
+BOOL
+WINAPI
+GetFileMUIInfo(
+    DWORD dwFlags,
+    PCWSTR pcwszFilePath,
+    PFILEMUIINFO pFileMUIInfo,
+    DWORD *pcbFileMUIInfo)
+{
+    DPRINT1("%x %p %p %p\n", dwFlags, pcwszFilePath, pFileMUIInfo, pcbFileMUIInfo);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+/*
+ * @unimplemented
+ */
+BOOL
+WINAPI
+GetFileMUIPath(
+    DWORD dwFlags,
+    PCWSTR pcwszFilePath,
+    PWSTR pwszLanguage,
+    PULONG pcchLanguage,
+    PWSTR pwszFileMUIPath,
+    PULONG pcchFileMUIPath,
+    PULONGLONG pululEnumerator)
+{
+    DPRINT1("%x %p %p %p %p %p\n", dwFlags, pcwszFilePath, pwszLanguage, pwszFileMUIPath, pcchFileMUIPath, pululEnumerator);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+/*
+ * @unimplemented
+ */
+BOOL
+WINAPI
+GetProcessPreferredUILanguages(
+    DWORD dwFlags,
+    PULONG pulNumLanguages,
+    PZZWSTR pwszLanguagesBuffer,
+    PULONG pcchLanguagesBuffer)
+{
+    DPRINT1("%x %p %p %p\n", dwFlags, pulNumLanguages, pwszLanguagesBuffer, pcchLanguagesBuffer);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+/*
+* @unimplemented
+*/
+BOOL
+WINAPI
+GetSystemPreferredUILanguages(
+    DWORD dwFlags,
+    PULONG pulNumLanguages,
+    PZZWSTR pwszLanguagesBuffer,
+    PULONG pcchLanguagesBuffer)
+{
+    DPRINT1("%x %p %p %p\n", dwFlags, pulNumLanguages, pwszLanguagesBuffer, pcchLanguagesBuffer);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+/*
+ * @unimplemented
+ */
+BOOL
+WINAPI
+GetThreadPreferredUILanguages(
+    DWORD dwFlags,
+    PULONG pulNumLanguages,
+    PZZWSTR pwszLanguagesBuffer,
+    PULONG pcchLanguagesBuffer)
+{
+    DPRINT1("%x %p %p %p\n", dwFlags, pulNumLanguages, pwszLanguagesBuffer, pcchLanguagesBuffer);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+/*
+ * @unimplemented
+ */
+LANGID
+WINAPI
+GetThreadUILanguage(VOID)
+{
+    UNIMPLEMENTED;
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return 0;
+}
+
+/*
+ * @unimplemented
+ */
+BOOL
+WINAPI
+GetUILanguageInfo(
+    DWORD dwFlags,
+    PCZZWSTR pwmszLanguage,
+    PZZWSTR pwszFallbackLanguages,
+    PDWORD pcchFallbackLanguages,
+    PDWORD pdwAttributes)
+{
+    DPRINT1("%x %p %p %p %p\n", dwFlags, pwmszLanguage, pwszFallbackLanguages, pcchFallbackLanguages, pdwAttributes);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+
+/*
+ * @unimplemented
+ */
+BOOL
+WINAPI
+GetUserPreferredUILanguages(
+    DWORD dwFlags,
+    PULONG pulNumLanguages,
+    PZZWSTR pwszLanguagesBuffer,
+    PULONG pcchLanguagesBuffer)
+{
+    DPRINT1("%x %p %p %p\n", dwFlags, pulNumLanguages, pwszLanguagesBuffer, pcchLanguagesBuffer);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+/*
+ * @unimplemented
+ */
+BOOL
+WINAPI
+SetProcessPreferredUILanguages(
+    DWORD dwFlags,
+    PCZZWSTR pwszLanguagesBuffer,
+    PULONG pulNumLanguages)
+{
+    DPRINT1("%x %p %p\n", dwFlags, pwszLanguagesBuffer, pulNumLanguages);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}
+
+
+/*
+ * @unimplemented
+ */
+BOOL
+WINAPI
+SetThreadPreferredUILanguages(
+    DWORD dwFlags,
+    PCZZWSTR pwszLanguagesBuffer,
+    PULONG pulNumLanguages
+    )
+{
+    DPRINT1("%x %p %p\n", dwFlags, pwszLanguagesBuffer, pulNumLanguages);
+    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+    return FALSE;
+}