Bots vs Browsers - Public Bot / User Agent Database & Commentary
Bots vs Browsers - database of 16,267,630 user agents and growing
User Agent Details for "Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+5.1;+Trident/4.0;+MRA+5.5+(build+02842);+MRSPUTNIK+2,+0,+1,+90+SW;+MRIE8PACK+2.0.1)"