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Preventing Tmproxy from hooking to a UDP network connection in OfficeScan

    • Updated:
    • 13 Apr 2016
    • Product/Version:
    • OfficeScan 10.6
    • Platform:
    • Windows 2003 Enterprise
    • Windows 2003 Standard
    • Windows 2008 Enterprise
    • Windows 2008 Standard
    • Windows 2012 Enterprise
    • Windows 7 32-bit
    • Windows XP Professional
Summary
The OfficeScan NT Proxy Service hooks the User Datagram Protocol (UDP) network connection and prevents third-party VPN software from working.
Details
Public
To prevent OfficeScan clients from hooking the UDP network connection, do one of the following procedures depending on your version:
For OfficeScan 10.5
  1. Install at least Patch3 for OfficeScan 10.5.
  2. Open the ofcscan.ini file in the ..\PCCSRV folder in the OfficeScan installation directory.
  3. Add the "TmtdiAttachUDP" key under the Global Setting section of the ofcscan.ini file and set its value to "0".
    [Global Setting]
    TmtdiAttachUDP=0
  4. Open the OfficeScan server web console and go to Networked Computers > Global Client Settings screen.
  5. Click Save to deploy the setting to all clients.
    The OfficeScan client program automatically installs the following registry key:
    Path: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ Services\tmtdi\Parameters]
    Key: AttachUDP
    Type: dword
    Value: 0
For OfficeScan 10.6
Note: This function must be enabled on every client machine.
  1. Unload the OSCE client.
  2. Add the registry key "AttachUDP".
    [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\tmtdi\Parameters]
    AttachUDP=0 (DWORD)
  3. Reboot the machine.
Premium
Internal
Rating:
Category:
Configure; Troubleshoot
Solution Id:
1095487
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