Has issues with special characters and carriage returns (data won't get written). Also, writes to the XP Comments field rather than meta field. I have written a windows shell script that requires the use of exiftool.exe (and can be downloaded for free) that converts directly from zoombrowser meta tag external files (zb4meta.info) into embedded IPTC caption field of each image (but script can easily be modified to send to XMP or any other meta data field).... Script on sourceforge at url: sourceforge.net/projects/zbmetasavescriptconverter/files/
zbmetasave works perfectly.