File read error when launching host after upgrade to pcAnywhere 12.5 SP4

Article:TECH191515  |  Created: 2012-06-22  |  Updated: 2012-08-15  |  Article URL
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Article Type
Technical Solution


After upgrading to pcAnywhere 12.5 SP4 (version 12.5.5 build 1086), the Symantec pcAnywhere Host Service fails to run, or a host item (*.BHF) will not launch. 

Additionally attempts to open the host properties and view caller items (*.CIF) within the host properties will result in the following error.


File read error


pcAnywhere 12.x previously upgraded from pre-12.x version


The pcAnywhere host item was created with a version of pcAnywhere older than 12.0.x, and then it was upgraded to pcAnywhere 12.5 SP4.


Upgrading pcAnywhere to 12.5 SP4 from versions prior to 12.0 is not supported.  Symantec recommends uninstalling pre-12.0 versions before installing pcAnywhere 12.5 SP4.  Refer to the Related Articles section below to find the release notes, user guide, and information about supported upgrade paths.

To resolve this issue after upgrading pcAnywhere from 12.x to 12.5 SP4, place the attached point fix on each affected computer:

  1. Download the attached file,
  2. Extract awio.dll to a temporary location
  3. Stop the Symantec pcAnywhere Host Service
  4. Replace the original file under the pcAnywhere program folder with the new file.  The default location depends on the version of Windows, and may be either of the following:
    C:\Program Files (x86)\Symantec\pcAnywhere
    C:\Program Files\Symantec\pcAnywhere
  5. Start the Symantec pcAnywhere Host Service



Fixes a file read error after upgrading from older versions of pcA (89 kBytes)

Supplemental Materials


Caller files do not upgrade properly causing pcA to error with File read error when launching host or opening host properties.

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