Index: dll/win32/msvcrt/msvcrt.spec
===================================================================
--- dll/win32/msvcrt/msvcrt.spec	(revision 55515)
+++ dll/win32/msvcrt/msvcrt.spec	(working copy)
@@ -975,7 +975,7 @@
 # stub _vprintf_p_l
 # stub _vprintf_s_l
 @ cdecl _utime(str ptr)
-# @ cdecl _vscprintf(str ptr)
+@ cdecl _vscprintf(str ptr)
 # stub _vscprintf_l
 # stub _vscprintf_p_l
 # @ cdecl _vscwprintf(wstr ptr)
Index: lib/sdk/crt/crt.cmake
===================================================================
--- lib/sdk/crt/crt.cmake	(revision 55515)
+++ lib/sdk/crt/crt.cmake	(working copy)
@@ -136,6 +136,7 @@
     printf/_snwprintf.c
     printf/_vcprintf.c
 	printf/_vcwprintf.c
+	printf/_vscprintf.c
     printf/_vsnprintf.c
     printf/_vsnwprintf.c
     printf/_vsprintf_p.c
@@ -154,7 +155,7 @@
     printf/vfwprintf_s.c
     printf/vprintf.c
     printf/vprintf_s.c
-    printf/vsprintf.c
+	printf/vsprintf.c
     printf/vswprintf.c
     printf/vwprintf.c
     printf/vwprintf_s.c
Index: lib/sdk/crt/crt.rbuild
===================================================================
--- lib/sdk/crt/crt.rbuild	(revision 55515)
+++ lib/sdk/crt/crt.rbuild	(working copy)
@@ -36,6 +36,7 @@
 		<file>_snwprintf.c</file>
 		<file>_vcprintf.c</file>
 		<file>_vcwprintf.c</file>
+		<file>_vscprintf.c</file>
 		<file>_vsnprintf.c</file>
 		<file>_vsnwprintf.c</file>
 		<file>_vsprintf_p.c</file>
Index: lib/sdk/crt/libcntpr.cmake
===================================================================
--- lib/sdk/crt/libcntpr.cmake	(revision 55515)
+++ lib/sdk/crt/libcntpr.cmake	(working copy)
@@ -13,6 +13,7 @@
     printf/_snprintf.c
     printf/_snwprintf.c
     printf/_vcprintf.c
+	printf/_vscprintf.c
     printf/_vsnprintf.c
     printf/_vsnwprintf.c
     printf/sprintf.c
Index: lib/sdk/crt/libcntpr.rbuild
===================================================================
--- lib/sdk/crt/libcntpr.rbuild	(revision 55515)
+++ lib/sdk/crt/libcntpr.rbuild	(working copy)
@@ -14,6 +14,7 @@
 		<file>_snprintf.c</file>
 		<file>_snwprintf.c</file>
 		<file>_vcprintf.c</file>
+		<file>_vscprintf.c</file>
 		<file>_vsnprintf.c</file>
 		<file>_vsnwprintf.c</file>
 		<file>sprintf.c</file>
Index: lib/sdk/crt/printf/_vscprintf.c
===================================================================
--- lib/sdk/crt/printf/_vscprintf.c	(revision 0)
+++ lib/sdk/crt/printf/_vscprintf.c	(revision 0)
@@ -0,0 +1,18 @@
+/*
+ * COPYRIGHT:       GNU GPL, see COPYING in the top level directory
+ * PROJECT:         ReactOS crt library
+ * FILE:            lib/sdk/crt/printf/_vscprintf.c
+ * PURPOSE:         Implementation of _vscprintf
+ * PROGRAMMER:      Víctor Martínez
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <limits.h>
+
+int
+__cdecl
+_vscprintf(const char* format, va_list va)
+{
+	return vsnprintf( NULL, INT_MAX, format, va );
+}