Bots vs Browsers - Public Bot / User Agent Database & Commentary
Bots vs Browsers - database of 16,270,926 user agents and growing
User Agent Details for "Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+MRSPUTNIK+2,+4,+0,+516;+GTB7.4;+MRA+5.10+(build+5310);+InfoPath.1)"