Professional OPC
Development Tools

logos

lupa

Online Forums

Technical support is provided through Support Forums below. Anybody can view them; you need to Register/Login to our site (see links in upper right corner) in order to Post questions. You do not have to be a licensed user of our product.

Please read Rules for forum posts before reporting your issue or asking a question. OPC Labs team is actively monitoring the forums, and replies as soon as possible. Various technical information can also be found in our Knowledge Base. For your convenience, we have also assembled a Frequently Asked Questions page.

Do not use the Contact page for technical issues.

  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Connections, Reconnections, COM/DCOM
  9. 2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients?

2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients?

More
19 Jun 2022 19:54 #10996 by support
Replied by support on topic 2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients?
Hi.

There should be no need to property changes on the objects you listed, but there may be global changes (at the beginning of the program) needed.
I have made the answer into a "Q&A" : kb.opclabs.com/COM_management#Q.26A

- look for and expand
"How do I migrate my VB.NET Windows Forms application to QuickOPC 2022.1 or later, and how can it be made to deal with CVE-2021-26414?"

Best regards

Please Log in or Create an account to join the conversation.

More
19 Jun 2022 17:50 #10995 by micham
Replied by micham on topic 2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients?
Hi,

Yes. VB.NET

Thank you.

Michael

Please Log in or Create an account to join the conversation.

More
19 Jun 2022 15:19 #10994 by support
Replied by support on topic 2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients?
Hello.

Do I recall correctly that you have a Visual Basic.NET application?

Regards

Please Log in or Create an account to join the conversation.

More
18 Jun 2022 05:25 #10992 by micham
Replied by micham on topic 2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients?
Hi,

Thank you for your answer. We are using the following objects in our project:

OpcComputerAndServerDialog
DAitemDialog
EasyDAClient

Do we need to change any properties of the above objects to support the hardening changes for CVE-2021-26414 vulnerability?
Or, is it enough to use version 2022.1?

Thank you.

Michael

Please Log in or Create an account to join the conversation.

More
18 Jun 2022 04:44 #10991 by support
Replied by support on topic 2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients?
Hi,
Yes, there may be an effect. It has been addressed in QuickOPC 2021.1.

- kb.opclabs.com/What%27s_new_in_QuickOPC_2022.1
- kb.opclabs.com/COM_management

Best regards

Please Log in or Create an account to join the conversation.

More
18 Jun 2022 03:40 #10990 by micham
2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients? was created by micham
Hi,
Will this Microsoft update has any effect on Quick OPC? Does Quick OPC uses CoInitializeSecurity?

See the attached document.

Thank you.

Michael
Attachments:

Please Log in or Create an account to join the conversation.

Moderators: support
  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Connections, Reconnections, COM/DCOM
  9. 2022 Microsoft Windows DCOM Security Update - Effect on OPC Classic Clients?
Time to create page: 0.058 seconds