problem in window service

[Logesh Subramani]

hi,
Actually i am new for ruby, i done mail sending application in
ruby and now i am trying to implement that mail application as a window
service. But it always showing one error , i don't know how to solve
this error

C:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
'gem_original_require': no such file to load -- win32/daemon (LoadError)
from c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
'require'
from BulkMail.rb:8


If anyone know about this error means, pls help me.

Thanks in advance