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OPC DA errors due to Microsoft patches are fixed

Microsoft has released new security updates which solve the problem related to the function CoInitializeSecurity. This function is required for OPC DA functionality in ibaPDA.

In January 2018 Microsoft released several security updates for Windows as a reaction to the processor bugs known as ‘Meltdown’ & ‘Spectre’. These updates contained a new bug related to the function CoInitializeSecurity which is required for OPC DA functionality in ibaPDA. When these updates were installed the OPC DA server and client in ibaPDA did not work anymore.

An iba Product Information was send out regarding this issue on January 11, 2018.

In the meantime Microsoft has released new security updates which solve the problem related to the function CoInitializeSecurity. The following list gives an overview about the originally affected security updates along with the new updates solving this issue:

  • KB4056888: Windows 10 Version 1511 January 2018 Security Update - solved in KB4075200
  • KB4056890: Windows 10 Version 1607 & Windows Server 2016 January 2018 Security Update - solved in KB4057142
  • KB4056891: Windows 10 Version 1703 January 2018 Security Update - solved in KB4057144
  • KB4056892: Windows 10 Version 1709 January 2018 Security Update - solved in KB4073291
  • KB4056893: Windows 10 LTSB January 2018 Security Update - solved in KB4075199
  • KB4056898: Windows 8.1 and Windows Server 2012 R2 January 2018 Security Update - solved in KB4057401
  • KB4056897: Windows 7 and Windows Server 2008 R2 January 2018 Security Update. This security update was not affected by the problem.

After installing these updates the OPC DA server and client in ibaPDA will work again normally.

For further questions please contact our support via email (support@iba-ag.com) or via phone (+49-911-97282-14).