The "Re-Best" version likely indicates that the software has been re-released or repackaged, possibly with some tweaks or modifications to make it more compatible or user-friendly.
You're looking for content related to Internet Download Manager (IDM) version 6.40 Build 7, specifically the "Re- Best" version. Here's some information:
If you're looking for a download link, I suggest checking the official IDM website or other reputable software download sites.