I just bought a license for Ewido plus after using the free version for months. I had been using Windows Defender, but it almost trashed my PC and interfered with Spysweeper, McAfee VirusScan, and task scheduler. I have been very happy with Ewido free and now I amazed at how fast the auto updates are, and I love the notification near the system tray. It's great!!! I want to try to avoid major conflicts between Spysweeper and Ewido, so I am wondering what exactly the guard monitors. Spysweeper and DEfender both had hooks all throught the OS at places changes could be made, and they both list the areas they monitor. Ewido says it monitors "memory." Just what areas and which ones might interfere with Spysweeper and vice versa? BTW - I'ne had NO problems yet with Ewido and I love it.