There are 2 variations of files named quartz.dll published by Корпорация Майкрософт and http://www.quartz-scheduler.net/.
Remove quartz.dll

DirectShow by Корпорация Майкрософт

6.05.2600.6333 5bc8819c378177c3009f2dba080bf050 100.00%

Quarz.NET 2.0 for .NET 4.0 by http://www.quartz-scheduler.net/

VersionMD5Distribution 01fa57665741c3d83ee915e1b6d317bc 100.00%
Should I remove It? Clean your PC of unwanted adware, toolbars and bloatware.

Download it for FREE