diff --git a/ext/tk/ChangeLog.tkextlib b/ext/tk/ChangeLog.tkextlib
index 7eeabaa66c..1f680cea88 100644
--- a/ext/tk/ChangeLog.tkextlib
+++ b/ext/tk/ChangeLog.tkextlib
@@ -1,3 +1,7 @@
+2004-07-23  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
+
+	* add TclX support (partially; infox command and XPG/3 MsgCat only)
+
 2004-07-15  Hidetoshi NAGAI  <nagai@ai.kyutech.ac.jp>
 
 	* bug fix
diff --git a/ext/tk/lib/tkextlib/SUPPORT_STATUS b/ext/tk/lib/tkextlib/SUPPORT_STATUS
index 81e92a1acf..58744f50ed 100644
--- a/ext/tk/lib/tkextlib/SUPPORT_STATUS
+++ b/ext/tk/lib/tkextlib/SUPPORT_STATUS
@@ -69,6 +69,10 @@ ICONS       http://www.satisoft.com/tcltk/icons/        ==> ICONS
 
 IncrTcl     http://sf.net/projects/incrTcl              ==> itcl, itk
 
+TclX        http://sf.net/projects/tclx
+              ==> tclx  (partial support; infox command and 
+                                          XPG/3 message catalogs only)
+
 TkImg       http://sf.net/projects/tkimg                ==> tkimg
 
 TkTreeCtrl  http://tktreectrl.sourceforge.net/          ==> treectrl
@@ -82,30 +86,26 @@ Tile        http://tktable.sourceforge.net/tile/        ==> tile
 TkTrans     http://www2.cmp.uea.ac.uk/~fuzz/tktrans/default.html
                ==>  tktrans (win32 only)
 
-TkDND       http://sourceforge.net/projects/tkdnd  ==> tkDND
+TkDND       http://sourceforge.net/projects/tkdnd       ==> tkDND
 
 
 
 ===< plan to support (alpha quality libraries may be included) >==============
 
-TclX        http://sf.net/projects/tclx      * may support Tk part only
-
 winico      http://tktable.sourceforge.net
 
+GraphViz    http://www.graphviz.org/
+
+Tkgeomap    http://tkgeomap.sourceforge.net/index.html
+
 
 
 ===< not determined to supprt or not >========================================
 
-GraphViz    http://www.graphviz.org/
-
 BLT         http://sourceforge.net/projects/blt
 
 Tix         http://tixlibrary.sourceforge.net/
 
-Tkgeomap    http://tkgeomap.sourceforge.net/index.html
-
-XBit        http://www.geocities.com/~chengye/
-
 TkZinc      http://www.tkzinc.org/
 
 Wbc         http://home.t-online.de/home/csaba.nemethi/
@@ -114,15 +114,23 @@ Mentry      http://home.t-online.de/home/csaba.nemethi/
 
 Tablelist   http://home.t-online.de/home/csaba.nemethi/
 
+ANIGIF      http://cardtable.sourceforge.net/tcltk/
+
+IMG_ROTATE  http://cardtable.sourceforge.net/tcltk/
+
+TclVfs      http://sourceforge.net/projects/tclvfs/
+
 vfwtcl      http://sourceforge.net/projects/avicaptcl
+                * Win32 only
+
+multicast   http://sourceforge.net/projects/avicaptcl
+                * Win32 only
+
+XBit        http://www.geocities.com/~chengye/
+                * current implementation is for Windows only
 
 QuickTimeTcl http://hem.fyristorg.com/matben/qt/
-
-ANIGIF     http://cardtable.sourceforge.net/tcltk/
-
-IMG_ROTATE http://cardtable.sourceforge.net/tcltk/
-
-TclVfs     http://sourceforge.net/projects/tclvfs/
+                * works under Mac OS (8,9,X) or Windows
 
 
 
diff --git a/ext/tk/lib/tkextlib/tclx.rb b/ext/tk/lib/tkextlib/tclx.rb
new file mode 100644
index 0000000000..3a4ff27644
--- /dev/null
+++ b/ext/tk/lib/tkextlib/tclx.rb
@@ -0,0 +1,13 @@
+#
+#  TclX support
+#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
+#
+
+# call setup script for general 'tkextlib' libraries
+require 'tkextlib/setup.rb'
+
+# call setup script
+require 'tkextlib/tclx/setup.rb'
+
+# load library
+require 'tkextlib/tclx/tclx'
diff --git a/ext/tk/lib/tkextlib/tclx/setup.rb b/ext/tk/lib/tkextlib/tclx/setup.rb
new file mode 100644
index 0000000000..ce0f0bd4d4
--- /dev/null
+++ b/ext/tk/lib/tkextlib/tclx/setup.rb
@@ -0,0 +1,8 @@
+#
+#  setup.rb   --   setup script before calling TkPackage.require()
+#
+#    If you need some setup operations (for example, add a library path
+#    to the library search path) before using Tcl/Tk library packages 
+#    wrapped by Ruby scripts in this directory, please write the setup 
+#    operations in this file.
+#
diff --git a/ext/tk/lib/tkextlib/tclx/tclx.rb b/ext/tk/lib/tkextlib/tclx/tclx.rb
new file mode 100644
index 0000000000..d10689d209
--- /dev/null
+++ b/ext/tk/lib/tkextlib/tclx/tclx.rb
@@ -0,0 +1,59 @@
+#
+#  tclx/tclx.rb
+#                               by Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
+#
+require 'tk'
+
+# call setup script for general 'tkextlib' libraries
+require 'tkextlib/setup.rb'
+
+# call setup script
+require 'tkextlib/tclx/setup.rb'
+
+# TkPackage.require('Tclx', '8.0')
+TkPackage.require('Tclx')
+
+module Tk
+  module TclX
+    def self.package_version
+      begin
+	TkPackage.require('Tclx')
+      rescue
+	''
+      end
+    end
+
+    def self.infox(*args)
+      Tk.tk_call('infox', *args)
+    end
+
+    ##############################
+
+    class XPG3_MsgCat
+      class << self
+	alias open new
+      end
+
+      def initialize(catname, fail_mode=false)
+	if fail_mode
+	  @msgcat_id = Tk.tk_call('catopen', '-fail', catname)
+	else
+	  @msgcat_id = Tk.tk_call('catopen', '-nofail', catname)
+	end
+      end
+
+      def close(fail_mode=false)
+	if fail_mode
+	  Tk.tk_call('catclose', '-fail', @msgcat_id)
+	else
+	  Tk.tk_call('catclose', '-nofail', @msgcat_id)
+	end
+	self
+      end
+
+      def get(setnum, msgnum, defaultstr)
+	Tk.tk_call('catgets', @msgcat_id, setnum, msgnum, defaultstr)
+      end
+    end
+  end
+end