Errno::ENOEXEC exception - ruby-on-rails

Question

I am working on the 2.0.2 rails application. Now when I execute the command from a windows pc with rake db:migate it gives Errno::ENOEXEC in SystemsController#index.
Is there any other way to execute the system commands from the rails application on windows pc?
Here is the error:
Errno::ENOEXEC in SystemsController#index
Exec format error - rake db:migrate
RAILS_ROOT: E:/RoR/ibt/InstantRails-2.0-win/rails_apps/config
Application Trace | Framework Trace | Full Trace
E:/RoR/ibt/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/core_ext/kernel/agnostics.rb:7:in ``' ``
E:/RoR/ibt/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/core_ext/kernel/agnostics.rb:7:in ``'`
app/controllers/systems_controller.rb:24:in `index'
I am getting on ruby console:
irb(main):001:0> system('dir')
Volume in drive E has no label.
Volume Serial Number is 522C-BDB1
Directory of E:\RoR\ibt\InstantRails-2.0-win\rails_apps\config
11/29/2012 03:11 PM <DIR> .
11/29/2012 03:11 PM <DIR> ..
11/29/2012 02:41 PM <DIR> app
11/29/2012 02:42 PM <DIR> config
=> true
irb(main):002:0> system('rake db:migrate')
=> false
irb(main):003:0>

Answer 1

I have solved this issue by running the rake file from the the batch file where the rake is situated.
irb(main):001:0> system('dir')
Volume in drive E has no label.
Volume Serial Number is 522C-BDB1
Directory of E:\RoR\ibt\InstantRails-2.0-win\rails_apps\config
11/29/2012 03:11 PM <DIR> .
11/29/2012 03:11 PM <DIR> ..
11/29/2012 02:41 PM <DIR> app
11/29/2012 02:42 PM <DIR> config
=> true
irb(main):002:0> system('rake db:migrate')
=> false
In the controller file
system("#{RAILS_ROOT}/../../ruby/bin/rake.bat db:migrate")
Gives result
== 99 AddFieldtoSystemAssoziations: migrating =================================
== 99 AddFieldtoSystemAssoziations: migrated (0.0391s) ========================