Ruby Forum Test > Activerecord mailing (ar_mailer)

I am trying to run ar_mailer for mass mailings, but I can´t get my
server started after adding the sentence
    require 'action_mailer/ar_mailer'
in environment.rb

I am using Windows XP, Ruby 1.8.6, and Rails 1.2.3/Edge Rails.
This is the error I get


** Starting Mongrel listening at 0.0.0.0:3000
** Starting Rails with development environment...
C:/Documents and
Settings/jmcervera/work/project1/vendor/rails/actionmailer/lib/../../actionpack/lib/../../activesupport/lib/active_support/dependencies.rb:477:in
`const_missing': uninitialized constant ActionMailer::ARMailer::Email
(NameError)
  from
c:/ruby/lib/ruby/gems/1.8/gems/ar_mailer-1.3.1/lib/action_mailer/ar_mailer.rb:70
  from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in
`gem_original_require'
  from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:32:in
`require'
  from C:/Documents and
Settings/jmcervera/work/project1/config/environment.rb:14
  from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
  from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require'
  from
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.0.1-mswin32/lib/mongrel/rails.rb:155:in
`rails'
  from
c:/ruby/lib/ruby/gems/1.8/gems/mongrel-1.0.1-mswin32/bin/mongrel_rails:112:in
`cloaker_'
   ... 9 levels...
  from c:\ruby\bin\mongrel_rails:16:in `load'
  from c:\ruby\bin\mongrel_rails:16
  from -e:2:in `load'
  from -e:2


I have the same error, even trying to do that require in irb.

Does this gem works with Windows XP?

Thanks in advance.

Juanma Cervera