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Thread: ZAP Blocks Norton AntiVirus Scan

  1. #1
    lmcdavid Guest

    Default ZAP Blocks Norton AntiVirus Scan

    ZAP 6.5.722.000 consistently stops Norton AV scan and displays NAV Scanner Module is trying to change your network settings by modifying windrvdir\etc\hosts Application NAVW32.exe. NAV must scan and is not a threat but the ZAP warning does NOT include a check box to Remember accepting this perceived threat. This stops NAV until the warning is manually accepted. This is a recurring PAIN. Is this a known problem? Is there a solution?

    Operating System:Windows XP Pro
    Product Name:ZoneAlarm Pro
    Software Version:6.5

  2. #2
    socalreviews Guest

    Default Re: ZAP Blocks Norton AntiVirus Scan

    The new ZA 6.5x series monitors and guards the HOSTS file as part of its OS Firewall features. Many other security applications use and modify the HOSTS file as a way of blocking particular malicious internet links and adware sites. I also run Webroot SpySweeper 4.5 and had a HOSTS file conflict between ZASS 6.5.722 and SpySweeper 4.5. There was a simple fix posted about this issue to fix the problem with SpySweeper. The fix probably also works to fix other HOSTS file conflicts including Norton AVs control and monitoring of the HOSTS file. The key to solving this conflict is to change the HOSTS file control settings in ZA or turn off the similar feature in the other security application.

    Here a link to that thread with the SpySweeper fix:
    There is another general fix explained in this thread that may also apply to other applications that change the HOSTS file:

  3. #3
    lmcdavid Guest

    Default Re: ZAP Blocks Norton AntiVirus Scan

    This nearly-immediate reply did indeed correct my problem and did allow NAV to complete overnight without interruption by ZAP. Considering the prevalence of NAV, ZA should change this default. Thank you, SoCalReviews for a very effective and professional reply.

  4. #4
    socalreviews Guest

    Default Re: ZAP Blocks Norton AntiVirus Scan

    You are welcome Imcdavid! Thank you for posting back with your results. Have a great weekend!

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