lucy24 - 11:29 pm on Nov 17, 2012 (gmt 0)

Can it be human? I've got one source of human MSIE UAs spanning about a year. Most go on for miles; the short versions are

Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)
and far less often
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; GTB7.3)
Caveat: Most of them are probably the same physical machine, so I don't know how representative this is.

One non-human that sneaked into the same list:
Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)