AVG, Avast and NOD 32 are very efficient anti-virus programs. However they may affect your computer's performance(especially if you are using a computer with CPU P4 2.0 GHz or less).

We recommend you use McCaffey, Norton or Microsoft Essentials (lighter but very efficient anti-virus programs).

We also recommend you perform a daily back-up of your GEM-CAR data base (option 11 in "Configuration" / "General information" should be active).