qagent.dll is a process created for the Intuit Quicken suite. Disabling or enabling it comes down to the user’s preference. Quicken is a financial management tool brought to the Intuit. Quicken runs on both Windows and Mac systems. An online interface is also available. Several versions of Quicken include: Quicken New User, Quicken Basic, and Quicken Deluxe.
If you tried to uninstall one of the Quicken applications, it could be that all the files were not removed. The first thing to do is uninstall the software a second time. This can catch things the first install didn’t.
If that doesn’t bring you any success, you should head over to ZookaWare PC Cleaner. Their scan will remove whatever’s been left over from software that you don’t need anymore, they guarantee it.