B0_res.dll has been associated with a browser hijacker. What this means is in some cases, it has been known to take over your browser and take you places you don’t want to go.
Browser hijackers are known for opening up many browsers and force hits on a particular website. It generates money for the person who generated the malicious software and annoys the victim. It can also changes your favorites without your consent and they tend to be not so favorable sites.
The error also tends to be a legitimate error for the majority of people. The only real way to tell is to check the file registry. Download ZookaWare PC Cleaner for a free registry scan to determine if it is a threat or if there are any other threats. If there is a threat, you can purchase it for $29.95. ZookaWare PC Cleaner promises 100% removal and backs it with a 60-day money-back guarantee.