... Windows XP, you can display comments among other properties of your files ...
Sorry, now I'm confused: What are we talking about ??
To my mind there are differences between
- the comments written from Explorer (with "File Properties" to all kinds of files - doc, bmp, txt, ...)
- comments which are part of the DWG-Props inside AutoCAD
First ones can be displayed with "Standard-Windows-Explorer"; the other ones need an Explorer-plugin (like "Cadexplorer") to be displayed with explorer.
Peter