Read all about it at:
http://howto.cnet.com/8301-11310_39-57423500-285/disable-comments-on-mos... [1]
Seems to be "freeware."
CNET also shows you how to use string and an eyebolt to creat a "stringpod" when you don't have a tripod but need one. See it here http://howto.cnet.com/8301-11310_39-57423901-285/diy-the-string-tripod-a... [2]
Links:
[1] http://howto.cnet.com/8301-11310_39-57423500-285/disable-comments-on-most-web-sites-with-shut-up/
[2] http://howto.cnet.com/8301-11310_39-57423901-285/diy-the-string-tripod-aka-stringpod/