how to access ruby app from rails

[Junkone]

HI
I have built a ruby app grabbing stock data. Now i want to integreate
it with rails and use it within rails. lets say my app resides in
c:\data\grabdata.rb

my rails is in c:\webdemo\

1. How do i launch c:\data\grabdata.rb from rails.
2. I want the non rails project grabdata.rb to use the activerecord
class stock.rb
how do i do it?

Regards

Seede