, PaoloM wrote

*snip*

And Windows 7 completely ripped out Vista's explorer data layer to replace it with a new one supporting federated data sources to populate search results, etc...

Every new OS has a lot of work done and, even if it looks similar to the previous one, I would bet more than 80% of the code goes thru some update one way or another (be that refactoring, rebuilding or optimizing).

you are right. Now, let's get back to the topic instead getting even more de-railed on my poorly presented post.