diff --git a/reactos/lib/crt/direct/chdrive.c b/reactos/lib/crt/direct/chdrive.c
index f45dcac442e..cd3163fa7ab 100644
--- a/reactos/lib/crt/direct/chdrive.c
+++ b/reactos/lib/crt/direct/chdrive.c
@@ -1,8 +1,14 @@
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
 #include "precomp.h"
-#include <ctype.h>
-#include <direct.h>
-#include <stdlib.h>
-#include <errno.h>
 
 /*
  * @implemented
diff --git a/reactos/lib/crt/float/chgsign.c b/reactos/lib/crt/float/chgsign.c
index 8ee7a0c3dd6..70c9fef745a 100644
--- a/reactos/lib/crt/float/chgsign.c
+++ b/reactos/lib/crt/float/chgsign.c
@@ -1,6 +1,16 @@
-#include <float.h>
-#include <internal/ieee.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
 
+#include "precomp.h"
+
+#include <internal/ieee.h>
 
 /*
  * @implemented
diff --git a/reactos/lib/crt/float/clearfp.c b/reactos/lib/crt/float/clearfp.c
index 59bf640f48d..dede8cbc496 100644
--- a/reactos/lib/crt/float/clearfp.c
+++ b/reactos/lib/crt/float/clearfp.c
@@ -1,4 +1,14 @@
-#include <float.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
+#include "precomp.h"
 
 unsigned int _statusfp( void );
 
diff --git a/reactos/lib/crt/float/cntrlfp.c b/reactos/lib/crt/float/cntrlfp.c
index e986f2d8715..8cb9d8918e4 100644
--- a/reactos/lib/crt/float/cntrlfp.c
+++ b/reactos/lib/crt/float/cntrlfp.c
@@ -1,6 +1,6 @@
 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
 
-#include <float.h>
+#include "precomp.h"
 
 #define X87_CW_IM   (1<<0)      /* Invalid operation mask */
 #define X87_CW_DM   (1<<1)      /* Denormal operand mask */
diff --git a/reactos/lib/crt/float/copysign.c b/reactos/lib/crt/float/copysign.c
index f8675e705cb..4f03f7f3577 100644
--- a/reactos/lib/crt/float/copysign.c
+++ b/reactos/lib/crt/float/copysign.c
@@ -1,4 +1,14 @@
-#include <float.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
+#include "precomp.h"
 #include <internal/ieee.h>
 
 /*
diff --git a/reactos/lib/crt/float/fpclass.c b/reactos/lib/crt/float/fpclass.c
index 446771d7795..441e6658c87 100644
--- a/reactos/lib/crt/float/fpclass.c
+++ b/reactos/lib/crt/float/fpclass.c
@@ -1,4 +1,14 @@
-#include <float.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
+#include "precomp.h"
 #include <math.h>
 #include <internal/ieee.h>
 
diff --git a/reactos/lib/crt/float/fpecode.c b/reactos/lib/crt/float/fpecode.c
index 2b8a13d85ae..664d1d81682 100644
--- a/reactos/lib/crt/float/fpecode.c
+++ b/reactos/lib/crt/float/fpecode.c
@@ -1,5 +1,14 @@
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
 #include "precomp.h"
-#include <float.h>
 #include <internal/tls.h>
 
 /*
diff --git a/reactos/lib/crt/float/fpreset.c b/reactos/lib/crt/float/fpreset.c
index 776438d1f51..9f678608814 100644
--- a/reactos/lib/crt/float/fpreset.c
+++ b/reactos/lib/crt/float/fpreset.c
@@ -1,5 +1,14 @@
-#include <float.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
 
+#include "precomp.h"
 
 /*
  * @unimplemented
diff --git a/reactos/lib/crt/float/logb.c b/reactos/lib/crt/float/logb.c
index bce51db29ac..940fbdaa762 100644
--- a/reactos/lib/crt/float/logb.c
+++ b/reactos/lib/crt/float/logb.c
@@ -20,8 +20,6 @@
 
 #include "precomp.h"
 
-#include <float.h>
-
 double _logb (double __x)
 {
   register double __val;
diff --git a/reactos/lib/crt/float/nafter.c b/reactos/lib/crt/float/nafter.c
index 4311b3d2430..3177ec44744 100644
--- a/reactos/lib/crt/float/nafter.c
+++ b/reactos/lib/crt/float/nafter.c
@@ -1,5 +1,14 @@
-#include <float.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
 
+#include "precomp.h"
 
 /*
  * @implemented
diff --git a/reactos/lib/crt/float/scalb.c b/reactos/lib/crt/float/scalb.c
index da63d38011b..72d9404ae14 100644
--- a/reactos/lib/crt/float/scalb.c
+++ b/reactos/lib/crt/float/scalb.c
@@ -1,4 +1,14 @@
-#include <float.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
+#include "precomp.h"
 #include <internal/ieee.h>
 
 /*
diff --git a/reactos/lib/crt/float/statfp.c b/reactos/lib/crt/float/statfp.c
index 6b4e80ef2c0..dfcad0b7fb6 100644
--- a/reactos/lib/crt/float/statfp.c
+++ b/reactos/lib/crt/float/statfp.c
@@ -1,4 +1,14 @@
-#include <float.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
+#include "precomp.h"
 
 /*
  * @implemented
diff --git a/reactos/lib/crt/include/internal/file.h b/reactos/lib/crt/include/internal/file.h
index 14274d66aa6..9aeceb92ac0 100644
--- a/reactos/lib/crt/include/internal/file.h
+++ b/reactos/lib/crt/include/internal/file.h
@@ -13,14 +13,13 @@
 #ifndef __CRT_INTERNAL_FILE_H
 #define __CRT_INTERNAL_FILE_H
 
-#include <stdio.h>
-#include <fcntl.h>
+#ifndef _CRT_PRECOMP_H
+#error DO NOT INCLUDE THIS HEADER DIRECTLY
+#endif
+
 #include <stdarg.h>
 #include <time.h>
 
-#include <windef.h>
-#include <winbase.h>
-
 #ifndef _IORMONCL
 #define _IORMONCL 004000  /* remove on close, for temp files */
 #endif
diff --git a/reactos/lib/crt/io/create.c b/reactos/lib/crt/io/create.c
index 1de9f9dd231..70686e1c329 100644
--- a/reactos/lib/crt/io/create.c
+++ b/reactos/lib/crt/io/create.c
@@ -9,7 +9,6 @@
  */
 
 #include "precomp.h"
-#include <fcntl.h>
 
 #define NDEBUG
 #include <internal/debug.h>
diff --git a/reactos/lib/crt/io/fmode.c b/reactos/lib/crt/io/fmode.c
index aca546f10a6..fc7a4eae9e7 100644
--- a/reactos/lib/crt/io/fmode.c
+++ b/reactos/lib/crt/io/fmode.c
@@ -1,8 +1,6 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
 
-#include <fcntl.h>
-
 int _fmode = O_TEXT;
 
 /*
diff --git a/reactos/lib/crt/io/tell.c b/reactos/lib/crt/io/tell.c
index 8561b47d507..3950d204ed2 100644
--- a/reactos/lib/crt/io/tell.c
+++ b/reactos/lib/crt/io/tell.c
@@ -1,8 +1,6 @@
 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
 
-#include <sys/types.h>
-
 /*
  * @implemented
  */
diff --git a/reactos/lib/crt/io/wcreate.c b/reactos/lib/crt/io/wcreate.c
index c8aff97a0fa..8131ddfbd4c 100644
--- a/reactos/lib/crt/io/wcreate.c
+++ b/reactos/lib/crt/io/wcreate.c
@@ -9,7 +9,6 @@
  */
 
 #include "precomp.h"
-#include <fcntl.h>
 
 #define NDEBUG
 #include <internal/debug.h>
diff --git a/reactos/lib/crt/io/wopen.c b/reactos/lib/crt/io/wopen.c
index 75cb23f5a06..16660219e40 100644
--- a/reactos/lib/crt/io/wopen.c
+++ b/reactos/lib/crt/io/wopen.c
@@ -16,7 +16,6 @@
 #if !defined(NDEBUG) && defined(DBG)
 #include <stdarg.h>
 #endif
-#include <fcntl.h>
 #include <sys/stat.h>
 #include <share.h>
 
diff --git a/reactos/lib/crt/locale/locale.c b/reactos/lib/crt/locale/locale.c
index b45507f40c3..1eebcbad52c 100644
--- a/reactos/lib/crt/locale/locale.c
+++ b/reactos/lib/crt/locale/locale.c
@@ -6,7 +6,6 @@
 
 #include "precomp.h"
 #include <locale.h>
-#include <limits.h>
 #include <internal/tls.h>
 
 #define NDEBUG
diff --git a/reactos/lib/crt/mbstring/islwr.c b/reactos/lib/crt/mbstring/islwr.c
index ab68fb77f13..b0c4bf1bee9 100644
--- a/reactos/lib/crt/mbstring/islwr.c
+++ b/reactos/lib/crt/mbstring/islwr.c
@@ -8,8 +8,7 @@
  *              12/04/99: Created
  */
 
-#include <mbctype.h>
-#include <ctype.h>
+#include "precomp.h"
 
 /*
  * code page 952 only
diff --git a/reactos/lib/crt/mbstring/ismbpun.c b/reactos/lib/crt/mbstring/ismbpun.c
index 0c901ff1c5e..2747db9dd14 100644
--- a/reactos/lib/crt/mbstring/ismbpun.c
+++ b/reactos/lib/crt/mbstring/ismbpun.c
@@ -1,3 +1,14 @@
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
+#include "precomp.h"
 
 #include <mbstring.h>
 #include <mbctype.h>
diff --git a/reactos/lib/crt/mbstring/isuppr.c b/reactos/lib/crt/mbstring/isuppr.c
index 0626ce5f071..08e93fdb713 100644
--- a/reactos/lib/crt/mbstring/isuppr.c
+++ b/reactos/lib/crt/mbstring/isuppr.c
@@ -8,8 +8,7 @@
  *              12/04/99: Created
  */
 
-#include <mbctype.h>
-#include <ctype.h>
+#include "precomp.h"
 
 /*
  * code page 952 only
diff --git a/reactos/lib/crt/mbstring/mbsicmp.c b/reactos/lib/crt/mbstring/mbsicmp.c
index 3f114b1d487..323fa7c3a22 100644
--- a/reactos/lib/crt/mbstring/mbsicmp.c
+++ b/reactos/lib/crt/mbstring/mbsicmp.c
@@ -7,9 +7,9 @@
  * UPDATE HISTORY:
  *              12/04/99: Created
  */
+#include "precomp.h"
 #include <mbstring.h>
 #include <mbctype.h>
-#include <ctype.h>
 
 /*
  * @implemented
diff --git a/reactos/lib/crt/precomp.h b/reactos/lib/crt/precomp.h
index e4c328187ae..ca85a3f6ff5 100644
--- a/reactos/lib/crt/precomp.h
+++ b/reactos/lib/crt/precomp.h
@@ -1,12 +1,20 @@
+#ifndef _CRT_PRECOMP_H
+#define _CRT_PRECOMP_H
+
+/* Some global constants to hack around the msvc build */
 #define _CRT_SECURE_NO_DEPRECATE
 #define _INC_WTIME_INL
 #define _INC_UTIME_INL
 #define _INC_TIME_INL
 
+/* Headers to be compiled */
 #include <stdio.h>
 #include <errno.h>
+#include <fcntl.h>
+#include <float.h>
 #include <malloc.h>
 #include <math.h>
+#include <limits.h>
 
 #define WIN32_NO_STATUS
 #include <windows.h>
@@ -17,5 +25,8 @@
   #include <stdint.h>
 #endif
 
-/* This file is a hack and should for the most part go away */
+/* CRT Internal data */
 #include <internal/file.h>
+#include <internal/ieee.h>
+
+#endif /* _CRT_PRECOMP_H */
diff --git a/reactos/lib/crt/stdio/fclose.c b/reactos/lib/crt/stdio/fclose.c
index 79a23c3182f..3f861ab3e7c 100644
--- a/reactos/lib/crt/stdio/fclose.c
+++ b/reactos/lib/crt/stdio/fclose.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
-#include <sys/types.h>
 #include <sys/stat.h>
 
 
diff --git a/reactos/lib/crt/stdio/fflush.c b/reactos/lib/crt/stdio/fflush.c
index c8684f4f95e..9a8201ebe6d 100644
--- a/reactos/lib/crt/stdio/fflush.c
+++ b/reactos/lib/crt/stdio/fflush.c
@@ -11,7 +11,6 @@
 /* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */
 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
-#include <sys/types.h>
 #include <sys/stat.h>
 
 /*
diff --git a/reactos/lib/crt/stdio/fgetws.c b/reactos/lib/crt/stdio/fgetws.c
index 196c8256e99..7a056877e38 100644
--- a/reactos/lib/crt/stdio/fgetws.c
+++ b/reactos/lib/crt/stdio/fgetws.c
@@ -26,7 +26,6 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
 
-//#include <msvcrt/ctype.h>
 #ifndef WEOF
 #define WEOF    (wchar_t)(0xFFFF)
 #endif
diff --git a/reactos/lib/crt/stdio/filbuf.c b/reactos/lib/crt/stdio/filbuf.c
index f2be1c6b1c8..72465fd3e70 100644
--- a/reactos/lib/crt/stdio/filbuf.c
+++ b/reactos/lib/crt/stdio/filbuf.c
@@ -2,8 +2,6 @@
 /* Copyright (C) 1996 DJ Delorie, see COPYING.DJ for details */
 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
-#include <sys/types.h>
-#include <wchar.h>
 
 int _readcnv(int fn, void* buf, size_t siz);
 
diff --git a/reactos/lib/crt/stdio/flsbuf.c b/reactos/lib/crt/stdio/flsbuf.c
index a0c009fc9d3..7246191b253 100644
--- a/reactos/lib/crt/stdio/flsbuf.c
+++ b/reactos/lib/crt/stdio/flsbuf.c
@@ -2,7 +2,6 @@
 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
 #include <wchar.h>
-#include <sys/types.h>
 
 int cntcr(char* bufp, int bufsiz);
 int convert(char* endp, int bufsiz, int n);
diff --git a/reactos/lib/crt/stdio/fopen.c b/reactos/lib/crt/stdio/fopen.c
index da24b12209c..10fa3013a97 100644
--- a/reactos/lib/crt/stdio/fopen.c
+++ b/reactos/lib/crt/stdio/fopen.c
@@ -27,14 +27,10 @@
 
 #include "precomp.h"
 
-#include <sys/types.h>
-#include <fcntl.h>
 #include <tchar.h>
 
 //might change fopen(file,mode) -> fsopen(file,mode,_SH_DENYNO);
 
-
-
 FILE* _tfopen(const _TCHAR *file, const _TCHAR *mode)
 {
   FILE *f;
diff --git a/reactos/lib/crt/stdio/freopen.c b/reactos/lib/crt/stdio/freopen.c
index ac5b16bf9b3..832a3f005fc 100644
--- a/reactos/lib/crt/stdio/freopen.c
+++ b/reactos/lib/crt/stdio/freopen.c
@@ -2,8 +2,6 @@
 
 #include "precomp.h"
 
-#include <sys/types.h>
-#include <fcntl.h>
 #include <tchar.h>
 
 /*
diff --git a/reactos/lib/crt/stdio/fseek.c b/reactos/lib/crt/stdio/fseek.c
index 0635d6e74c2..d059d6aafda 100644
--- a/reactos/lib/crt/stdio/fseek.c
+++ b/reactos/lib/crt/stdio/fseek.c
@@ -4,8 +4,6 @@
 
 #include "precomp.h"
 
-#include <fcntl.h>
-
 /*
  * @implemented
  */
diff --git a/reactos/lib/crt/stdio/fsopen.c b/reactos/lib/crt/stdio/fsopen.c
index 121a824bd01..4802a8c071d 100644
--- a/reactos/lib/crt/stdio/fsopen.c
+++ b/reactos/lib/crt/stdio/fsopen.c
@@ -11,10 +11,7 @@
 
 #include "precomp.h"
 
-#include <sys/types.h>
 #include <sys/stat.h>
-#include <stdlib.h>
-#include <fcntl.h>
 #include <share.h>
 #include <tchar.h>
 
diff --git a/reactos/lib/crt/stdio/ftell.c b/reactos/lib/crt/stdio/ftell.c
index 26886c2a177..5f0ed9a20e2 100644
--- a/reactos/lib/crt/stdio/ftell.c
+++ b/reactos/lib/crt/stdio/ftell.c
@@ -3,9 +3,6 @@
 
 #include "precomp.h"
 
-#include <fcntl.h>
-#include <errno.h>
-
 /*
  * @implemented
  */
diff --git a/reactos/lib/crt/stdio/sprintf.c b/reactos/lib/crt/stdio/sprintf.c
index 65d4da64886..2c48f019b8d 100644
--- a/reactos/lib/crt/stdio/sprintf.c
+++ b/reactos/lib/crt/stdio/sprintf.c
@@ -21,7 +21,6 @@ Cambridge, MA 02139, USA.  */
 #include "precomp.h"
 
 #include <wchar.h>
-#include <limits.h>
 #include <tchar.h>
 
 #undef sprintf
diff --git a/reactos/lib/crt/stdio/swprintf.c b/reactos/lib/crt/stdio/swprintf.c
index aa5d84e5d91..e2b1b4b133f 100644
--- a/reactos/lib/crt/stdio/swprintf.c
+++ b/reactos/lib/crt/stdio/swprintf.c
@@ -22,7 +22,6 @@ Cambridge, MA 02139, USA.  */
 #define _UNICODE
 #include "precomp.h"
 #include <wchar.h>
-#include <limits.h>
 #include <tchar.h>
 
 #undef sprintf
diff --git a/reactos/lib/crt/stdio/tmpfile.c b/reactos/lib/crt/stdio/tmpfile.c
index 679bc4cfb0f..e9bb6eb6043 100644
--- a/reactos/lib/crt/stdio/tmpfile.c
+++ b/reactos/lib/crt/stdio/tmpfile.c
@@ -4,7 +4,6 @@
 /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
 
-#include <fcntl.h>
 #include <share.h>
 
 FILE *  __alloc_file(void);
diff --git a/reactos/lib/crt/stdio/vfwprint.c b/reactos/lib/crt/stdio/vfwprint.c
index bf1785bf64e..8422811e260 100644
--- a/reactos/lib/crt/stdio/vfwprint.c
+++ b/reactos/lib/crt/stdio/vfwprint.c
@@ -59,7 +59,6 @@ vfwprintf(FILE *f, const wchar_t *fmt, va_list ap)
  * Appropiated for the reactos kernel, March 1998 -- David Welch
  */
 
-#include <ctype.h>
 #include <math.h>
 #include <internal/ieee.h>
 
diff --git a/reactos/lib/crt/stdio/vsprintf.c b/reactos/lib/crt/stdio/vsprintf.c
index e7b1d833063..28c08881f32 100644
--- a/reactos/lib/crt/stdio/vsprintf.c
+++ b/reactos/lib/crt/stdio/vsprintf.c
@@ -1,7 +1,6 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
 
-#include <limits.h>
 #include <tchar.h>
 
 /*
diff --git a/reactos/lib/crt/stdlib/atoi64.c b/reactos/lib/crt/stdlib/atoi64.c
index 2011e0f297d..b98d4cdf559 100644
--- a/reactos/lib/crt/stdlib/atoi64.c
+++ b/reactos/lib/crt/stdlib/atoi64.c
@@ -1,6 +1,14 @@
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
 
-#include <ctype.h>
-#include <stdlib.h>
+#include "precomp.h"
 
 /*
  * @implemented
diff --git a/reactos/lib/crt/stdlib/ecvt.c b/reactos/lib/crt/stdlib/ecvt.c
index 43ad5f2b2fc..7d3517cd85d 100644
--- a/reactos/lib/crt/stdlib/ecvt.c
+++ b/reactos/lib/crt/stdlib/ecvt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998 DJ Delorie, see COPYING.DJ for details */
-#include <stdlib.h>
-#include <float.h>
+#include "precomp.h"
 
 char *ecvtbuf (double, int, int *, int *, char *);
 
diff --git a/reactos/lib/crt/stdlib/fcvt.c b/reactos/lib/crt/stdlib/fcvt.c
index d01a54eea8a..efd4f50969e 100644
--- a/reactos/lib/crt/stdlib/fcvt.c
+++ b/reactos/lib/crt/stdlib/fcvt.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1998 DJ Delorie, see COPYING.DJ for details */
-#include <stdlib.h>
-#include <float.h>
+#include "precomp.h"
 
 char *fcvtbuf (double, int, int *, int *, char *);
 
diff --git a/reactos/lib/crt/stdlib/mbtowc.c b/reactos/lib/crt/stdlib/mbtowc.c
index 22b17c3fedc..e3cd69a1fb5 100644
--- a/reactos/lib/crt/stdlib/mbtowc.c
+++ b/reactos/lib/crt/stdlib/mbtowc.c
@@ -1,7 +1,14 @@
-#include "precomp.h"
-#include <stdlib.h>
-#include <ctype.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
 
+#include "precomp.h"
 
 #if 1
 
diff --git a/reactos/lib/crt/stdlib/strtol.c b/reactos/lib/crt/stdlib/strtol.c
index 2f0a9b44287..f91f4420a2b 100644
--- a/reactos/lib/crt/stdlib/strtol.c
+++ b/reactos/lib/crt/stdlib/strtol.c
@@ -1,9 +1,6 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
 
-#include <limits.h>
-#include <ctype.h>
-
 /*
  * @implemented
  */
diff --git a/reactos/lib/crt/stdlib/strtold.c b/reactos/lib/crt/stdlib/strtold.c
index 0d38ac4ce64..062dcfbbc3b 100644
--- a/reactos/lib/crt/stdlib/strtold.c
+++ b/reactos/lib/crt/stdlib/strtold.c
@@ -1,7 +1,6 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include <stdlib.h>
 #include <msvcrt/ctype.h>
-//#include <msvcrt/unconst.h>
 
 static double powten[] =
 {
diff --git a/reactos/lib/crt/stdlib/strtoul.c b/reactos/lib/crt/stdlib/strtoul.c
index 666353f86cf..36364f70851 100644
--- a/reactos/lib/crt/stdlib/strtoul.c
+++ b/reactos/lib/crt/stdlib/strtoul.c
@@ -1,7 +1,5 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
-
-#include <limits.h>
 #include <ctype.h>
 
 /*
diff --git a/reactos/lib/crt/stdlib/strtoull.c b/reactos/lib/crt/stdlib/strtoull.c
index 14a437db0bc..f19a5fb8230 100644
--- a/reactos/lib/crt/stdlib/strtoull.c
+++ b/reactos/lib/crt/stdlib/strtoull.c
@@ -2,9 +2,6 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
 
-#include <limits.h>
-#include <ctype.h>
-
 #if defined (_MSC_VER)
 #define UINT64_MAX	0xffffffffffffffff
 #endif
diff --git a/reactos/lib/crt/stdlib/wcstol.c b/reactos/lib/crt/stdlib/wcstol.c
index 103adbbf047..9e2090edc4b 100644
--- a/reactos/lib/crt/stdlib/wcstol.c
+++ b/reactos/lib/crt/stdlib/wcstol.c
@@ -1,6 +1,14 @@
-#include <stdlib.h>
-#include <ctype.h>
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   Unknown
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
 
+#include "precomp.h"
 
 /*
  * @implemented
diff --git a/reactos/lib/crt/stdlib/wcstoul.c b/reactos/lib/crt/stdlib/wcstoul.c
index b79d76e9c8a..fb2d5bc433d 100644
--- a/reactos/lib/crt/stdlib/wcstoul.c
+++ b/reactos/lib/crt/stdlib/wcstoul.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
 #include "precomp.h"
-#include <limits.h>
 
 /*
  * Convert a unicode string to an unsigned long integer.
diff --git a/reactos/lib/crt/stdlib/wctomb.c b/reactos/lib/crt/stdlib/wctomb.c
index 051600355b8..afb1868c2d2 100644
--- a/reactos/lib/crt/stdlib/wctomb.c
+++ b/reactos/lib/crt/stdlib/wctomb.c
@@ -17,8 +17,6 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "precomp.h"
-#include <ctype.h>
-#include <wchar.h>
 
 int
 STDCALL
diff --git a/reactos/lib/crt/stdlib/wmakpath.c b/reactos/lib/crt/stdlib/wmakpath.c
index 02f1fbb1396..1e403cfaf82 100644
--- a/reactos/lib/crt/stdlib/wmakpath.c
+++ b/reactos/lib/crt/stdlib/wmakpath.c
@@ -1,8 +1,16 @@
+/*
+ * COPYRIGHT:   See COPYING in the top level directory
+ * PROJECT:     ReactOS system libraries
+ * FILE:        lib/crt/??????
+ * PURPOSE:     Unknown
+ * PROGRAMER:   gdalsnes
+ * UPDATE HISTORY:
+ *              25/11/05: Added license header
+ */
+
 /* $Id$
  */
-#include <stdlib.h>
-#include <string.h>
-
+#include "precomp.h"
 
 /*
  * @implemented
diff --git a/reactos/lib/crt/stdlib/wtoi64.c b/reactos/lib/crt/stdlib/wtoi64.c
index fcff73fecd3..c4c58b27e9a 100644
--- a/reactos/lib/crt/stdlib/wtoi64.c
+++ b/reactos/lib/crt/stdlib/wtoi64.c
@@ -10,10 +10,6 @@
 
 #include "precomp.h"
 
-#include <ctype.h>
-#include <stdlib.h>
-
-
 /*
  * @implemented
  */
diff --git a/reactos/lib/crt/time/ctime.c b/reactos/lib/crt/time/ctime.c
index ecc81549b8b..aaf3eda9485 100644
--- a/reactos/lib/crt/time/ctime.c
+++ b/reactos/lib/crt/time/ctime.c
@@ -37,7 +37,6 @@
 
 #include "precomp.h"
 
-#include <fcntl.h>
 #include "tzfile.h"
 #include "posixrul.h"