How do I rename files in sub directories?

Question

Is there any way of batch renaming files in sub directories?

For example:

Rename *.html to *.htm in a folder which has directories

Answer 1

For Windows, I've made a convenient litte VBScript solution with regex-based renaming and Drag&Drop support. Give it a try if you like - put it in a vbs file and drop your folder on it in Explorer.