diff --git a/tools/windows/conf.rb b/tools/windows/conf.rb
new file mode 100755
index 000000000..fd0b111db
--- /dev/null
+++ b/tools/windows/conf.rb
@@ -0,0 +1,10 @@
+#!/usr/bin/env ruby
+
+def read_config
+  IO.readlines("#{File.dirname(__FILE__)}/conf.sh").
+    map    { |line| line.chomp.gsub(%r{\$HOME|\$\{HOME\}}, ENV['HOME']) }.
+    reject { |line| %r{^#|^\s*$}.match line }.
+    select { |line| %r{=}.match line }.
+    map    { |line| line.split %r{=} }.
+    to_h
+end
diff --git a/tools/windows/conf.sh b/tools/windows/conf.sh
index f732e0b59..f92df7b15 100644
--- a/tools/windows/conf.sh
+++ b/tools/windows/conf.sh
@@ -1,2 +1,3 @@
 mxe_dir=${HOME}/prog/video/mingw/cross
 saxon_dir=${HOME}/opt/saxon-he
+file_list_dir=${HOME}/prog/video/mingw/src/uc/file-lists
diff --git a/tools/windows/file_list_to_nsi_uninstaller_instructions.rb b/tools/windows/file_list_to_nsi_uninstaller_instructions.rb
new file mode 100755
index 000000000..045f59aca
--- /dev/null
+++ b/tools/windows/file_list_to_nsi_uninstaller_instructions.rb
@@ -0,0 +1,32 @@
+#!/usr/bin/env ruby
+
+require "pp"
+require_relative "conf"
+
+fail "Missing file list name" if ARGV.empty?
+
+config    = read_config
+file_name = ARGV[0]
+file_name = "#{config['file_list_dir']}/#{file_name}.txt" if !FileTest.exists?(file_name)
+files     = IO.readlines(file_name).map { |file| file.chomp.gsub(%r{^\.}, '').gsub(%r{^/}, '').gsub(%r{/}, '\\') }
+dirs      = {}
+
+files.each do |file|
+  puts %Q(  Delete "$INSTDIR\\#{file}")
+
+  dir = file
+  while true
+    break unless %r{\\}.match(file)
+
+    dir.gsub!(%r{\\[^\\]+$}, '')
+    dirs[dir] = true
+  end
+end
+
+puts
+
+dirs.
+  keys.
+  sort_by { |dir| [ dir.gsub(%r{[^\\]+}, '').length, dir ] }.
+  reverse.
+  each    { |dir| puts %Q(  RMDir "$INSTDIR\\#{dir}") }