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Downloading 7MB to 11MB of Smart Scan Query Filter pattern

    • Updated:
    • 1 Apr 2020
    • Product/Version:
    • OfficeScan 10.6
    • Worry-Free Business Security Standard/Advanced 7.0
    • Worry-Free Business Security Standard/Advanced 8.0
    • Worry-Free Business Security Standard/Advanced 9.0
    • Platform:
    • Windows 2003 Datacenter
    • Windows 2003 Datacenter 64-bit
    • Windows 2003 Enterprise
    • Windows 2003 Enterprise 64-bit
    • Windows 2003 Home Server
    • Windows 2003 Server R2
    • Windows 2003 Small Business Server
    • Windows 2003 Small Business Server R2
    • Windows 2003 Standard
    • Windows 2003 Standard 64-bit
    • Windows 2003 Web Server 64-bit
    • Windows 2003 Web Server Edition
    • Windows 2008 Datacenter
    • Windows 2008 Datacenter 64-bit
    • Windows 2008 Enterprise
    • Windows 2008 Enterprise 64-bit
    • Windows 2008 Essential Business Server
    • Windows 2008 Server Core
    • Windows 2008 Server Foundation
    • Windows 2008 Server R2
    • Windows 2008 Small Business Server
    • Windows 2008 Standard
    • Windows 2008 Standard 64-bit
    • Windows 2008 Storage Server
    • Windows 2008 Web Server Edition
    • Windows 2008 Web Server Edition 64-bit
    • Windows 2011 Small Business Server Essentials
    • Windows 2011 Small Business Server Premium Add-on
    • Windows 2011 Small Business Server Standard
    • Windows 7 32-bit
    • Windows 7 64-bit
    • Windows 8 32-bit
    • Windows 8 64-bit
    • Windows Vista 32-bit
    • Windows Vista 64-bit
    • Windows Vista SP1 32-bit / 64-bit
    • Windows Vista SP2 32-bit / 64-bit
    • Windows XP Professional
    • Windows XP Professional 64-bit
    • Windows XP SP2 32-bit
    • Windows XP SP3 32-bit

The size of the Smart Query Filter (BF.ptn) is proportional to the file size of the Smart Scan Pattern, which has been growing rapidly due to increased threats in recent months. As a result, the Smart Query Filter has to update and redeploy itself to Smart Scan clients. The size of the update is approximately 7MB to 11 MB. This is required by all Smart Scan clients.

This affects the users of Smart Scan method of scanning for OfficeScan 10, 10.5, 10.6, and Worry-Free Business Security (WFBS) 6.0 and 7.0 clients.

Clients using conventional pattern are not affected. This article applies to WFBS Advanced only.

For OfficeScan, WFBS  and Stand-Alone Smart Scan Server 2.0, a built-in throttling function resolves this network capacity issue. This function is automatically enabled if the product detects that the BF.ptn size increased.

For OfficeScan 10.0, WFBS 6.0, and Stand-Alone Smart Scan Server 1.0, apply patches with bandwidth throttling feature limiting the number of OfficeScan/WFBS clients that are able to download 7 MB file at a given time. By default, the patches allow five (5) clients to download the 7 MB file. Afterwards, the patches let the clients wait for 15 seconds before allowing the next batch of clients to download the 7 MB file.

Below are the patches and Readme files.

To change the Smart Query Filter Bandwidth Throttling default settings:

  1. Open the ptngrowth.ini file.
    • For OfficeScan server, this is located in the ...OfficeScan>\PCCSRV\WSS\ folder.
    • For Smart Scan Stand-Alone server, this is in /var/tmcss/conf/.
  2. Locate the entries below:



    • MAX_UPDATE_CONNECTION is the maximum number of connections allowed to download FULL BF.ptn
    • UPDATE_WAIT_SECOND is the number of seconds to wait before the next MAX_UPDATE_CONNECTION becomes available
    • COOL_DOWN_ELAPSE_DAY is the number of days that the "Cool Down" period will remain active
    • COOL_DOWN determines Cool Down state (active/inactive)
    • COOL_DOWN_TIMESTAMP is the timestamp when changing size issue occurs
    Using this default setting takes around 50 minutes for 1,000 clients to be updated in a 100 MBps environment.
  3. Change the values of the following entries based on your preferred number of clients and network utilization:


  4. Restart the Smart Scan Server service.
Solution Id:
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