Windows (XP) renaming feature

G'day,
I was just wondering if anyone was aware of the feature, I think it's only in windows XP, whereas you can select a whole batch of files and rename one of them, the rest also get renamed the same, with (00x) after the name, and annoyingly it changes the extension to CAPS. If you are aware of this, do you know if there is any way of changing what the rest of the files are changed to, as it's not very good for web pages to have spaces in the file names and caps, it makes it more confusing, this is a good way to rename a batch of image files, as long as it works effectively.

Monty

 

has noone got an idea about this?
it's a stupid feature unless you can edit it.