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OfficeScan 10.6 client installation or upgrade fails because of DwIoTrapNT.Dll error

    • Updated:
    • 3 Feb 2016
    • Product/Version:
    • OfficeScan 10.6
    • Platform:
    • Windows 2003 Enterprise
    • Windows 2008 Enterprise
    • Windows 7 32-bit
    • Windows 7 64-bit
    • Windows Vista 32-bit
    • Windows Vista 64-bit
    • Windows XP Professional
    • Windows XP Professional 64-bit
Summary

OfficeScan client upgrade fails because of expired or invalid digital signature of the DWIoTrapNT.dll file.

Below is a sample snippet from ofcdebug:

2012 02/19 10:03:52 [2df08 : 2df18] (00) (D) [][upgrade.exe][VerifyEmbeddedSignature] Fail to verify the signature of the file (C:\PROGRAM FILES\TREND MICRO\OFFICESCAN
CLIENT\Temp\Program\DWIoTrapNT.dll) with error code (0x800b0101). - [fio_FileIO.cpp(345)]

Below is a sample snippet from the upgrade.log file:

2012/02/19 10:04:18 - [CopyAllFile35] At least one of downloaded files has invalid digital signature, delete all files in downloaded folder.

During the installation or upgrade, the following error may also appear:

Unable to install the OfficeScan client. There was an error copying DwIoTrapNT.Dll. Please contact your OfficeScan administrator for assistance.

Error in copying DwIoTrapNT.dll

Details
Public

The issue occurs because there is a system process that uses the file and the installer cannot change the OfficeScan client directory.

To resolve the issue, do one of the following:

If the issue persists:

  1. Go to the directory of OfficeScan client (e.g. C:\Program files).
  2. Rename the OfficeScan client directory.
  3. Reinstall the OfficeScan client.
Premium
Internal
Rating:
Category:
Deploy; Install; Upgrade; Migrate
Solution Id:
1060163
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