Save thumbnails to .bmp in directory of drawings, across multiple sub directories, with all the VBA source
as well. It can zoom drawings to extents also, if you need to make sure you have thumbs and valid views.
This is a good project for people who need to do numerous drawings with the same process, as this allows a
means to get at all drawings in a computer drive. The file access module is by Michael Hunter, it was new
in 1999, as cadence published it in it's original format.