diff --git a/Gemfile b/Gemfile
index 30abbc9..e26e005 100755
--- a/Gemfile
+++ b/Gemfile
@@ -6,4 +6,9 @@ gem 'filewatcher'
 gem 'haml'
 gem 'coffee-script'
 gem 'nokogiri'
-gem 'sass'
\ No newline at end of file
+gem 'sass'
+
+group :development do
+  gem 'twee2', path: '.'
+  gem 'pry-byebug'
+end
\ No newline at end of file
diff --git a/doc/usage.txt b/doc/usage.txt
index 747fbd8..0762e7b 100755
--- a/doc/usage.txt
+++ b/doc/usage.txt
@@ -16,7 +16,6 @@ Usage:
   twee2 decompile [URL] [output.tw2]
     Decompiles a Twee2/Twine 2 HTML output file at a specified URL into
     a Twee2 source file.
-    NOT AVAILABLE ON MICROSOFT WINDOWS.
 
   twee2 version
     Reports what version of Twee2 you're using, and checks what the
diff --git a/lib/twee2.rb b/lib/twee2.rb
index 3d83b3a..30ce6c4 100755
--- a/lib/twee2.rb
+++ b/lib/twee2.rb
@@ -41,8 +41,10 @@ def self.build(input, output, options = {})
       puts "NOTICE: You haven't specified your IFID. Consider adding to your code -"
       puts "::StoryIFID[twee2]\nTwee2::build_config.story_ifid = '#{build_config.story_ifid}'"
     end
+    # Make sure output directory exists
+    FileUtils.mkdir_p(File.dirname(output))
     # Produce output file
-    File::open(output, 'w') do |out|
+    File::open(output, 'w', encoding: "utf-8") do |out|
       out.print build_config.story_format.compile
     end
     puts "Done"
@@ -74,14 +76,12 @@ def self.version_check
     end
   end
 
-  unless Gem.win_platform?
-    # Reverse-engineers a Twee2/Twine 2 output HTML file into a Twee2 source file
-    def self.decompile(url, output)
-      File::open(output, 'w') do |out|
-        out.print Decompiler::decompile(url)
-      end
-      puts "Done"
+  # Reverse-engineers a Twee2/Twine 2 output HTML file into a Twee2 source file
+  def self.decompile(url, output, encoding:"utf-8")
+    File::open(output, 'w') do |out|
+      out.print Decompiler::decompile(url)
     end
+    puts "Done"
   end
 
   def self.help
diff --git a/lib/twee2/decompiler.rb b/lib/twee2/decompiler.rb
index 7ee1393..8d427af 100644
--- a/lib/twee2/decompiler.rb
+++ b/lib/twee2/decompiler.rb
@@ -1,54 +1,59 @@
-unless Gem.win_platform?
-  require 'rubygems'
-  require 'open-uri'
-  require 'nokogiri'
+require 'rubygems'
+require 'open-uri'
+require 'nokogiri'
 
-  module Twee2
-    class DecompilationFailedException < Exception; end
+module Twee2
+  class DecompilationFailedException < Exception; end
 
-    class Decompiler
-      def self.decompile(url)
-        result = ''
-        # Load the compiled HTML and sanity-check it
-        html = Nokogiri::HTML(open(url))
-        raise(DecompilationFailedException, 'tw-storydata not found') unless storydata = html.at_css('tw-storydata')
-        # Extract the tw-storydata#name (StoryTitle) and #startnode
-        result << "::StoryTitle\n#{storydata[:name].strip}\n\n"
-        startnode_pid, startnode_name = storydata[:startnode].strip, nil
-        # Extract the custom CSS and Javascript, if applicable
-        if (css = storydata.at_css('#twine-user-stylesheet')) && ((css_content = css.content.strip) != '')
-          result << "::StoryCSS [stylesheet]\n#{css_content}\n\n"
-        end
-        if (js = storydata.at_css('#twine-user-script')) && ((js_content = js.content.strip) != '')
-          result << "::StoryJS [script]\n#{js.content}\n\n"
-        end
-        # Extract each passage
-        storydata.css('tw-passagedata').each do |passagedata|
-          # Check if this is the start passage and record this accordingly
-          startnode_name = passagedata[:name] if(startnode_pid == passagedata[:pid])
-          # Write the passage out
-          result << "::#{passagedata[:name].strip}"
-          result << " [#{passagedata[:tags].strip}]" if passagedata[:tags].strip != ''
-          result << " <#{passagedata[:position].strip}>" if passagedata[:position].strip != ''
-          result << "\n#{tidyup_passagedata(passagedata.content.strip)}\n\n"
-        end
-        # Write the Twee2 settings out (compatability layer)
-        result << "::Twee2Settings [twee2]\n"
-        result << "@story_start_name = '#{startnode_name.gsub("'", "\\'")}'\n" if startnode_name
-        result << "\n"
-        # Return the result
-        result
+  class Decompiler
+    def self.decompile(url)
+      result = ''
+      # Load the compiled HTML and sanity-check it
+      html = Nokogiri::HTML(open(url), nil, 'utf-8')
+      raise(DecompilationFailedException, 'tw-storydata not found') unless storydata = html.at_css('tw-storydata')
+      # Extract the tw-storydata#name (StoryTitle) and #startnode
+      result << "::StoryTitle\n#{storydata[:name].strip}\n\n"
+      startnode_pid, startnode_name = storydata[:startnode].strip, nil
+      ifid = storydata[:ifid]
+      story_format = storydata[:format]
+      if story_format == 'SugarCube' && storydata[:'format-version'].start_with?('2.')
+        story_format = 'SugarCube2'
       end
+      # Extract the custom CSS and Javascript, if applicable
+      if (css = storydata.at_css('#twine-user-stylesheet')) && ((css_content = css.content.strip) != '')
+        result << "::StoryCSS [stylesheet]\n#{css_content}\n\n"
+      end
+      if (js = storydata.at_css('#twine-user-script')) && ((js_content = js.content.strip) != '')
+        result << "::StoryJS [script]\n#{js.content}\n\n"
+      end
+      # Extract each passage
+      storydata.css('tw-passagedata').each do |passagedata|
+        # Check if this is the start passage and record this accordingly
+        startnode_name = passagedata[:name] if(startnode_pid == passagedata[:pid])
+        # Write the passage out
+        result << "::#{passagedata[:name].strip}"
+        result << " [#{passagedata[:tags].strip}]" if passagedata[:tags].strip != ''
+        result << " <#{passagedata[:position].strip}>" if passagedata[:position].strip != ''
+        result << "\n#{tidyup_passagedata(passagedata.content.strip)}\n\n"
+      end
+      # Write the Twee2 settings out (compatability layer)
+      result << "::Twee2Settings [twee2]\n"
+      result << "@story_start_name = '#{startnode_name.gsub("'", "\\'")}'\n" if startnode_name
+      result << "Twee2::build_config.story_ifid = '#{ifid}'\n"
+      result << "Twee2::build_config.story_format = '#{story_format}'\n"
+      result << "\n"
+      # Return the result
+      result
+    end
 
-      protected
+    protected
 
-      # Fixes common problems with decompiled passage content
-      def self.tidyup_passagedata(passagedata_content)
-        passagedata_content.gsub(/\[\[ *(.*?) *\]\]/, '[[\1]]').                # remove excess spacing within links: not suitable for Twee-style source
-                            gsub(/\[\[ *(.*?) *<- *(.*?) *\]\]/, '[[\1<-\2]]'). # ditto
-                            gsub(/\[\[ *(.*?) *-> *(.*?) *\]\]/, '[[\1->\2]]'). # ditto
-                            gsub(/\[\[ *(.*?) *\| *(.*?) *\]\]/, '[[\1|\2]]')   # ditto
-      end
+    # Fixes common problems with decompiled passage content
+    def self.tidyup_passagedata(passagedata_content)
+      passagedata_content.gsub(/\[\[ *(.*?) *\]\]/, '[[\1]]').                # remove excess spacing within links: not suitable for Twee-style source
+                          gsub(/\[\[ *(.*?) *<- *(.*?) *\]\]/, '[[\1<-\2]]'). # ditto
+                          gsub(/\[\[ *(.*?) *-> *(.*?) *\]\]/, '[[\1->\2]]'). # ditto
+                          gsub(/\[\[ *(.*?) *\| *(.*?) *\]\]/, '[[\1|\2]]')   # ditto
     end
   end
 end
\ No newline at end of file
diff --git a/lib/twee2/story_file.rb b/lib/twee2/story_file.rb
index 00bfb1b..ea25100 100644
--- a/lib/twee2/story_file.rb
+++ b/lib/twee2/story_file.rb
@@ -26,7 +26,7 @@ def initialize(filename)
       @child_story_files = []
 
       # Load file into memory to begin with
-      lines = File::read(filename).split(/\r?\n/)
+      lines = File::read(filename, encoding: 'utf-8').split(/\r?\n/)
       # First pass - go through and perform 'includes'
       i, in_story_includes_section = 0, false
       while i < lines.length
@@ -48,7 +48,7 @@ def initialize(filename)
           # include a file here because an @include directive was spotted
           prefix, filename = $1, $2.strip
           if File::exists?(filename)
-            lines[i,1] = File::read(filename).split(/\r?\n/).map{|l|"#{prefix}#{l}"} # insert in-place, with prefix of appropriate amount of whitespace
+            lines[i,1] = File::read(filename, encoding: 'utf-8').split(/\r?\n/).map{|l|"#{prefix}#{l}"} # insert in-place, with prefix of appropriate amount of whitespace
             i-=1 # process this line again, in case of ::@include nesting
           else
             puts "WARNING: tried to ::@include file '#{filename}' but file was not found."
@@ -114,7 +114,7 @@ def initialize(filename)
     # Returns the rendered XML that represents this story
     def xmldata
       data = @story_data.target!
-      data.gsub('{{STORY_JS}}', @story_js)
+      data.gsub('{{STORY_JS}}') {@story_js}
     end
 
     # Runs HAML, Coffeescript etc. preprocessors across each applicable passage
diff --git a/lib/twee2/story_format.rb b/lib/twee2/story_format.rb
index 948d77b..2bd65df 100644
--- a/lib/twee2/story_format.rb
+++ b/lib/twee2/story_format.rb
@@ -8,7 +8,7 @@ class StoryFormat
     def initialize(name)
       raise(StoryFormatNotFoundException) if !File::exists?(format_file_path = Twee2::buildpath("storyFormats/#{name}/format.js")) && !File::exists?(format_file_path = "#{name}/format.js")
       @name = name
-      format_file = File::read(format_file_path)
+      format_file = File::read(format_file_path, encoding: 'utf-8')
       format_data = format_file.match(/(["'])source\1 *: *(["']).*?[^\\]\2/)[0]
       format_data_for_json = "\{#{format_data}\}"
       @source = JSON.parse(format_data_for_json)['source']
@@ -16,7 +16,10 @@ def initialize(name)
 
     # Given a story file, injects it into the StoryFormat and returns the HTML results
     def compile
-      @source.gsub('{{STORY_NAME}}', Twee2::build_config.story_name).gsub('{{STORY_DATA}}', Twee2::build_config.story_file.xmldata).gsub('{{STORY_FORMAT}}', @name)
+      @source \
+        .gsub('{{STORY_NAME}}')   { Twee2::build_config.story_name } \
+        .gsub('{{STORY_DATA}}')   { Twee2::build_config.story_file.xmldata } \
+        .gsub('{{STORY_FORMAT}}') { @name }
     end
 
     # Returns an array containing the known StoryFormat names
diff --git a/lib/twee2/version.rb b/lib/twee2/version.rb
index 4296e2f..4e24826 100755
--- a/lib/twee2/version.rb
+++ b/lib/twee2/version.rb
@@ -1,3 +1,3 @@
 module Twee2
-  VERSION = "0.5.0"
+  VERSION = "0.6.0"
 end
diff --git a/web/source/documentation.html.haml b/web/source/documentation.html.haml
index 13082b9..b4ce46d 100755
--- a/web/source/documentation.html.haml
+++ b/web/source/documentation.html.haml
@@ -403,7 +403,7 @@ title: Full documentation
     %p
       It's possible to convert existing (compiled) Twee2/Twine 2 story files, in HTML format, back into
       Twee2 source files for further editing. This can be used to convert your Twine 2 projects into Twee2
-      files or to easily examine the contents of somebody else's story. This feature does not work on Microsoft
+      files or to easily examine the contents of somebody else's story. This feature now works on Microsoft
       Windows. To use it, run:
     %p
       %code twee2 decompile input.html output.tw2
diff --git a/web/source/install.html.haml b/web/source/install.html.haml
index 61e73f5..6abf8e8 100644
--- a/web/source/install.html.haml
+++ b/web/source/install.html.haml
@@ -22,8 +22,6 @@ title: Install
       %h3 Windows
       %p
         %a{href: 'http://rubyinstaller.org/downloads/'} Download RubyInstaller
-      %p.small
-        Note that the 'decompile' feature, which turns Twine 2 story files into Twee2 source code, is not supported on Windows.
 
   .col-sm-4
     .well