Difference between two texts

We are after an asp page (or function/sub) that will show the difference's between two texts. Anyone familiar with the difference engine in wikipedia's history pages will understand what I mean. The engine basically will take two texts (lyrics), split it up line by line and display them side-by-side as two columns of cells, with cells with changes having a background colour: **Orange:** Text is has been changed. Changed words within the line should be bolded, as should included words and deleted words. **Red:** Text has been deleted. (i.e: Line has been deleted) **Green:** Text has been added. (i.e: Line has been added) Note: Obviously must operate without flaw, efficiently and quickly. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform ASP 3.0