diff --git a/libntfs/bootsect.c b/libntfs/bootsect.c
index dee15a17..0d9f8125 100644
--- a/libntfs/bootsect.c
+++ b/libntfs/bootsect.c
@@ -1,6 +1,4 @@
 /*
- * $Id$
- *
  * bootsect.c - Boot sector handling code. Part of the Linux-NTFS project.
  *
  * Copyright (c) 2000,2001 Anton Altaparmakov.
diff --git a/libntfs/compat.c b/libntfs/compat.c
index e69de29b..894f9b95 100644
--- a/libntfs/compat.c
+++ b/libntfs/compat.c
@@ -0,0 +1,56 @@
+/*
+ * compat.c - Tweaks for Windows compatability
+ *
+ * Copyright (c) 2002 Richard Russon.
+ *
+ * This program/include file is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program/include file is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (in the main directory of the Linux-NTFS
+ * distribution in the file COPYING); if not, write to the Free Software
+ * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifdef WINDOWS
+
+#include "compat.h"
+
+int ffs (int x)
+{
+	int r = 1;
+
+	if (!x)
+		return 0;
+	if (!(x & 0xffff)) {
+		x >>= 16;
+		r += 16;
+	}
+	if (!(x & 0xff)) {
+		x >>= 8;
+		r += 8;
+	}
+	if (!(x & 0xf)) {
+		x >>= 4;
+		r += 4;
+	}
+	if (!(x & 3)) {
+		x >>= 2;
+		r += 2;
+	}
+	if (!(x & 1)) {
+		x >>= 1;
+		r += 1;
+	}
+	return r;
+}
+
+#endif /* WINDOWS */
+
diff --git a/libntfs/debug.c b/libntfs/debug.c
index 01328ec0..34e1cb7c 100644
--- a/libntfs/debug.c
+++ b/libntfs/debug.c
@@ -1,6 +1,4 @@
 /*
- * $Id$
- *
  * debug.c - Debugging output functions. Part of the Linux-NTFS project.
  *
  * Copyright (c) 2002 Anton Altaparmakov.
diff --git a/libntfs/dir.c b/libntfs/dir.c
index dd156fba..e9bd2178 100644
--- a/libntfs/dir.c
+++ b/libntfs/dir.c
@@ -1,6 +1,4 @@
 /*
- * $Id$
- *
  * dir.c - Directory handling code. Part of the Linux-NTFS project.
  *
  * Copyright (c) 2002 Anton Altaparmakov.
diff --git a/libntfs/disk_io.c b/libntfs/disk_io.c
index 2d812aec..806db398 100644
--- a/libntfs/disk_io.c
+++ b/libntfs/disk_io.c
@@ -1,6 +1,4 @@
 /*
- * $Id$
- *
  * disk_io.c - Disk io functions. Part of the Linux-NTFS project.
  *
  * Copyright (c) 2000-2002 Anton Altaparmakov.
diff --git a/libntfs/mst.c b/libntfs/mst.c
index e4ece6dc..834fa8a4 100644
--- a/libntfs/mst.c
+++ b/libntfs/mst.c
@@ -1,6 +1,4 @@
 /*
- * $Id$
- *
  * mst.c - Multi sector fixup handling code. Part of the Linux-NTFS project.
  *
  * Copyright (c) 2000-2002 Anton Altaparmakov.
diff --git a/libntfs/runlist.c b/libntfs/runlist.c
index dd2bd15b..95669a00 100644
--- a/libntfs/runlist.c
+++ b/libntfs/runlist.c
@@ -1,6 +1,4 @@
 /*
- * $Id$
- *
  * runlist.c - Run list handling code. Part of the Linux-NTFS project.
  *
  * Copyright (c) 2002 Anton Altaparmakov.
diff --git a/libntfs/unistr.c b/libntfs/unistr.c
index ec749c43..b0321402 100644
--- a/libntfs/unistr.c
+++ b/libntfs/unistr.c
@@ -1,6 +1,4 @@
 /*
- * $Id$
- *
  * unistr.c - Unicode string handling. Part of the Linux-NTFS project.
  *
  * Copyright (c) 2000-2002 Anton Altaparmakov.
diff --git a/libntfs/volume.c b/libntfs/volume.c
index c23f0bcc..d81cb034 100644
--- a/libntfs/volume.c
+++ b/libntfs/volume.c
@@ -1,6 +1,4 @@
 /*
- * $Id$
- *
  * volume.c - NTFS volume handling code. Part of the Linux-NTFS project.
  *
  * Copyright (c) 2000-2002 Anton Altaparmakov.