The backupagent common.dll file stems from BackupAgent 18.104.22.168 which is a part of BackupAgent B.V. BackupAgent develops online backup software for ISP, resellers and businesses.
To determine if the backupagent common.dll file is a legitimate Windows DLL error, you need to run a computer scan to check the directory location. The majority of people should not do this by hand as it can damage your computer’s hard drive. It is highly recommended to have a registry scanner do this for you.
The reason is simple. There are so many DLL files that it is impossible to list which ones are legitimate and which ones are not. Even legitimated names can be in the wrong place causing errors and simply moving them does not resolve the error.
Computer experts agree running a registry cleaner is the simplest and safest way to resolve the issue. ZookaWare PC Cleaner is fully capable of resolving 100% of registry related errors and will have your computer running like new again in no time at all.