diff --git a/Makefile.in b/Makefile.in
index b6fe1dd54..9efbd88be 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -42,8 +42,7 @@ LDFLAGS = @LDFLAGS@ $(DBGFLAGS) $(STATIC)
 LIBS =  @LIBNBASE_LIBS@ @LIBNSOCK_LIBS@ @LIBPCRE_LIBS@ @LIBPCAP_LIBS@ @OPENSSL_LIBS@ @LIBDNET_LIBS@ @LIBLUA_LIBS@ @LIBS@ 
 # LIBS =  -lefence @LIBS@
 # LIBS =  -lrmalloc @LIBS@
-SHTOOL = ./shtool
-INSTALL = $(SHTOOL) install 
+INSTALL = @INSTALL@
 # MAKEDEPEND = @MAKEDEPEND@
 export RPMTDIR=$(HOME)/rpm
 
@@ -174,7 +173,7 @@ my_distclean:
 	         config.cache config.log config.status
 
 install-nmap: $(TARGET)
-	$(SHTOOL) mkdir -f -p -m 755 $(DESTDIR)$(bindir) $(DESTDIR)$(mandir)/man1 $(DESTDIR)$(nmapdatadir)
+	$(INSTALL) -d $(DESTDIR)$(bindir) $(DESTDIR)$(mandir)/man1 $(DESTDIR)$(nmapdatadir)
 	$(INSTALL) -c -m 755 nmap $(DESTDIR)$(bindir)/nmap
 # Use strip -x to avoid stripping dynamically loaded NSE functions. See
 # http://seclists.org/nmap-dev/2007/q4/0272.html.
@@ -208,7 +207,7 @@ build-zenmap: $(ZENMAPDIR)/setup.py $(ZENMAPDIR)/zenmapCore/Version.py
 	cd $(ZENMAPDIR) && $(PYTHON) setup.py build $(if $(DESTDIR),--executable "$(DEFAULT_PYTHON_PATH)")
 
 install-zenmap: $(ZENMAPDIR)/setup.py
-	$(SHTOOL) mkdir -f -p -m 755 $(DESTDIR)$(bindir) $(DESTDIR)$(mandir)/man1
+	$(INSTALL) -d $(DESTDIR)$(bindir) $(DESTDIR)$(mandir)/man1
 	cd $(ZENMAPDIR) && $(PYTHON) setup.py install --prefix "$(prefix)" $(if $(DESTDIR),--root "$(DESTDIR)")
 	$(INSTALL) -c -m 644 docs/zenmap.1 $(DESTDIR)$(mandir)/man1/
 # Create a symlink from nmapfe to zenmap if nmapfe doesn't exist or is
@@ -224,11 +223,11 @@ NSE_LIB_LUA_FILES = nselib/*.lua
 NSE_LIB_SO_FILES = nselib-bin/*.so
 
 install-nse: $(TARGET)
-	$(SHTOOL) mkdir -f -p -m 755 $(DESTDIR)$(nmapdatadir)/scripts
+	$(INSTALL) -d $(DESTDIR)$(nmapdatadir)/scripts
 	cp -f $(NSE_FILES) $(DESTDIR)$(nmapdatadir)/scripts
-	$(SHTOOL) mkdir -f -p -m 755 $(DESTDIR)$(nmapdatadir)/nselib
+	$(INSTALL) -d $(DESTDIR)$(nmapdatadir)/nselib
 	cp -f $(NSE_LIB_LUA_FILES) $(DESTDIR)$(nmapdatadir)/nselib
-	$(SHTOOL) mkdir -f -p -m 755 $(DESTDIR)$(nmaplibexecdir)/nselib-bin
+	$(INSTALL) -d $(DESTDIR)$(nmaplibexecdir)/nselib-bin
 	cp -f $(NSE_LIB_SO_FILES) $(DESTDIR)$(nmaplibexecdir)/nselib-bin
 
 install: install-nmap $(INSTALLNSE) $(INSTALLZENMAP)
diff --git a/configure b/configure
index a3130a393..bb9fd29e0 100755
--- a/configure
+++ b/configure
@@ -670,6 +670,9 @@ OBJEXT
 CXX
 CXXFLAGS
 ac_ct_CXX
+INSTALL_PROGRAM
+INSTALL_SCRIPT
+INSTALL_DATA
 COMPAT_OBJS
 COMPAT_SRCS
 STRIP
@@ -3953,6 +3956,87 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+{ echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
+echo $ECHO_N "checking for a BSD-compatible install... $ECHO_C" >&6; }
+if test -z "$INSTALL"; then
+if test "${ac_cv_path_install+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in
+  ./ | .// | /cC/* | \
+  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
+  /usr/ucb/* ) ;;
+  *)
+    # OSF1 and SCO ODT 3.0 have their own names for install.
+    # Don't use installbsd from OSF since it installs stuff as root
+    # by default.
+    for ac_prog in ginstall scoinst install; do
+      for ac_exec_ext in '' $ac_executable_extensions; do
+	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
+	  if test $ac_prog = install &&
+	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  elif test $ac_prog = install &&
+	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+	    # program-specific install script used by HP pwplus--don't use.
+	    :
+	  else
+	    ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+	    break 3
+	  fi
+	fi
+      done
+    done
+    ;;
+esac
+done
+IFS=$as_save_IFS
+
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL=$ac_cv_path_install
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    INSTALL=$ac_install_sh
+  fi
+fi
+{ echo "$as_me:$LINENO: result: $INSTALL" >&5
+echo "${ECHO_T}$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+
  if test -n "$GXX"; then
       CXXFLAGS="$CXXFLAGS -Wall "
  fi
@@ -9045,6 +9129,7 @@ gives unlimited permission to copy, distribute and modify it."
 
 ac_pwd='$ac_pwd'
 srcdir='$srcdir'
+INSTALL='$INSTALL'
 _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF
@@ -9262,6 +9347,9 @@ OBJEXT!$OBJEXT$ac_delim
 CXX!$CXX$ac_delim
 CXXFLAGS!$CXXFLAGS$ac_delim
 ac_ct_CXX!$ac_ct_CXX$ac_delim
+INSTALL_PROGRAM!$INSTALL_PROGRAM$ac_delim
+INSTALL_SCRIPT!$INSTALL_SCRIPT$ac_delim
+INSTALL_DATA!$INSTALL_DATA$ac_delim
 COMPAT_OBJS!$COMPAT_OBJS$ac_delim
 COMPAT_SRCS!$COMPAT_SRCS$ac_delim
 STRIP!$STRIP$ac_delim
@@ -9299,9 +9387,6 @@ PCRE_DIST_CLEAN!$PCRE_DIST_CLEAN$ac_delim
 LIBDNET_LIBS!$LIBDNET_LIBS$ac_delim
 LIBDNETDIR!$LIBDNETDIR$ac_delim
 DNET_DEPENDS!$DNET_DEPENDS$ac_delim
-DNET_BUILD!$DNET_BUILD$ac_delim
-DNET_CLEAN!$DNET_CLEAN$ac_delim
-DNET_DIST_CLEAN!$DNET_DIST_CLEAN$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -9343,6 +9428,9 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+DNET_BUILD!$DNET_BUILD$ac_delim
+DNET_CLEAN!$DNET_CLEAN$ac_delim
+DNET_DIST_CLEAN!$DNET_DIST_CLEAN$ac_delim
 LIBLUA_LIBS!$LIBLUA_LIBS$ac_delim
 LIBLUADIR!$LIBLUADIR$ac_delim
 LUA_DEPENDS!$LUA_DEPENDS$ac_delim
@@ -9362,7 +9450,7 @@ LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 17; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 20; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
@@ -9585,6 +9673,10 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
   # CONFIG_FILE
   #
 
+  case $INSTALL in
+  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+  esac
 _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF
@@ -9637,6 +9729,7 @@ s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
 s&@builddir@&$ac_builddir&;t t
 s&@abs_builddir@&$ac_abs_builddir&;t t
 s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
 $ac_datarootdir_hack
 " $ac_file_inputs | sed -f "$tmp/subs-1.sed" | sed -f "$tmp/subs-2.sed" >$tmp/out
 
diff --git a/configure.ac b/configure.ac
index a92795d9e..a4d940e61 100644
--- a/configure.ac
+++ b/configure.ac
@@ -43,6 +43,8 @@ AC_C_INLINE
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_CXX
+AC_PROG_INSTALL
+
  if test -n "$GXX"; then
       CXXFLAGS="$CXXFLAGS -Wall "
  fi
diff --git a/install-sh b/install-sh
deleted file mode 100755
index ebc66913e..000000000
--- a/install-sh
+++ /dev/null
@@ -1,250 +0,0 @@
-#! /bin/sh
-#
-# install - install a program, script, or datafile
-# This comes from X11R5 (mit/util/scripts/install.sh).
-#
-# Copyright 1991 by the Massachusetts Institute of Technology
-#
-# Permission to use, copy, modify, distribute, and sell this software and its
-# documentation for any purpose is hereby granted without fee, provided that
-# the above copyright notice appear in all copies and that both that
-# copyright notice and this permission notice appear in supporting
-# documentation, and that the name of M.I.T. not be used in advertising or
-# publicity pertaining to distribution of the software without specific,
-# written prior permission.  M.I.T. makes no representations about the
-# suitability of this software for any purpose.  It is provided "as is"
-# without express or implied warranty.
-#
-# Calling this script install-sh is preferred over install.sh, to prevent
-# `make' implicit rules from creating a file called install from it
-# when there is no Makefile.
-#
-# This script is compatible with the BSD install script, but was written
-# from scratch.  It can only install one file at a time, a restriction
-# shared with many OS's install programs.
-
-
-# set DOITPROG to echo to test this script
-
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit="${DOITPROG-}"
-
-
-# put in absolute paths if you don't have them in your path; or use env. vars.
-
-mvprog="${MVPROG-mv}"
-cpprog="${CPPROG-cp}"
-chmodprog="${CHMODPROG-chmod}"
-chownprog="${CHOWNPROG-chown}"
-chgrpprog="${CHGRPPROG-chgrp}"
-stripprog="${STRIPPROG-strip}"
-rmprog="${RMPROG-rm}"
-mkdirprog="${MKDIRPROG-mkdir}"
-
-transformbasename=""
-transform_arg=""
-instcmd="$mvprog"
-chmodcmd="$chmodprog 0755"
-chowncmd=""
-chgrpcmd=""
-stripcmd=""
-rmcmd="$rmprog -f"
-mvcmd="$mvprog"
-src=""
-dst=""
-dir_arg=""
-
-while [ x"$1" != x ]; do
-    case $1 in
-	-c) instcmd="$cpprog"
-	    shift
-	    continue;;
-
-	-d) dir_arg=true
-	    shift
-	    continue;;
-
-	-m) chmodcmd="$chmodprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-o) chowncmd="$chownprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-g) chgrpcmd="$chgrpprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-s) stripcmd="$stripprog"
-	    shift
-	    continue;;
-
-	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
-	    shift
-	    continue;;
-
-	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
-	    shift
-	    continue;;
-
-	*)  if [ x"$src" = x ]
-	    then
-		src=$1
-	    else
-		# this colon is to work around a 386BSD /bin/sh bug
-		:
-		dst=$1
-	    fi
-	    shift
-	    continue;;
-    esac
-done
-
-if [ x"$src" = x ]
-then
-	echo "install:	no input file specified"
-	exit 1
-else
-	true
-fi
-
-if [ x"$dir_arg" != x ]; then
-	dst=$src
-	src=""
-	
-	if [ -d $dst ]; then
-		instcmd=:
-	else
-		instcmd=mkdir
-	fi
-else
-
-# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
-# might cause directories to be created, which would be especially bad 
-# if $src (and thus $dsttmp) contains '*'.
-
-	if [ -f $src -o -d $src ]
-	then
-		true
-	else
-		echo "install:  $src does not exist"
-		exit 1
-	fi
-	
-	if [ x"$dst" = x ]
-	then
-		echo "install:	no destination specified"
-		exit 1
-	else
-		true
-	fi
-
-# If destination is a directory, append the input filename; if your system
-# does not like double slashes in filenames, you may need to add some logic
-
-	if [ -d $dst ]
-	then
-		dst="$dst"/`basename $src`
-	else
-		true
-	fi
-fi
-
-## this sed command emulates the dirname command
-dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
-
-# Make sure that the destination directory exists.
-#  this part is taken from Noah Friedman's mkinstalldirs script
-
-# Skip lots of stat calls in the usual case.
-if [ ! -d "$dstdir" ]; then
-defaultIFS='	
-'
-IFS="${IFS-${defaultIFS}}"
-
-oIFS="${IFS}"
-# Some sh's can't handle IFS=/ for some reason.
-IFS='%'
-set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
-IFS="${oIFS}"
-
-pathcomp=''
-
-while [ $# -ne 0 ] ; do
-	pathcomp="${pathcomp}${1}"
-	shift
-
-	if [ ! -d "${pathcomp}" ] ;
-        then
-		$mkdirprog "${pathcomp}"
-	else
-		true
-	fi
-
-	pathcomp="${pathcomp}/"
-done
-fi
-
-if [ x"$dir_arg" != x ]
-then
-	$doit $instcmd $dst &&
-
-	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
-	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
-	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
-	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
-else
-
-# If we're going to rename the final executable, determine the name now.
-
-	if [ x"$transformarg" = x ] 
-	then
-		dstfile=`basename $dst`
-	else
-		dstfile=`basename $dst $transformbasename | 
-			sed $transformarg`$transformbasename
-	fi
-
-# don't allow the sed command to completely eliminate the filename
-
-	if [ x"$dstfile" = x ] 
-	then
-		dstfile=`basename $dst`
-	else
-		true
-	fi
-
-# Make a temp file name in the proper directory.
-
-	dsttmp=$dstdir/#inst.$$#
-
-# Move or copy the file name to the temp name
-
-	$doit $instcmd $src $dsttmp &&
-
-	trap "rm -f ${dsttmp}" 0 &&
-
-# and set any options; do chmod last to preserve setuid bits
-
-# If any of these fail, we abort the whole thing.  If we want to
-# ignore errors from any of these, just make sure not to ignore
-# errors from the above "$doit $instcmd $src $dsttmp" command.
-
-	if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
-	if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
-	if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
-	if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
-
-# Now rename the file to the real destination.
-
-	$doit $rmcmd -f $dstdir/$dstfile &&
-	$doit $mvcmd $dsttmp $dstdir/$dstfile 
-
-fi &&
-
-
-exit 0