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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 or issues. You do not have to own a commercial license in order to use the OPC Labs supportOur team is actively monitoring the forums, and provides replies as soon as possible.

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Various technical information can also be found in our Knowledge Base. For your convenience, we have also assembled a Frequently Asked Questions page.

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Software version is obsolete?

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15 Dec 2025 16:40 #14503 by support
Hello.

Yes, the scenario you described is *precisely* what Single Developer + Runtime Free license is for. The license is not tied to a specific person, you can freely transfer to a new developer as long as the original developer stops using the software.

The software you develop needs to have access to the license key in runtime. This can be done in multiple ways - e.g. by installing it on the target system using our License Manager utility. But probably the easiest for the end user is when you embed the license key with your project. This is described in the User's Guide ( opclabs.doc-that.com/files/onlinedocs/OPCLabs-ConnectivitySt...esource%20License%20Store.html ).

I hope this helps
 

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15 Dec 2025 16:19 #14502 by jmalda
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15 Dec 2025 15:59 #14501 by support
Hello.

I suppose your question is about the decision between Standard and Professional editions ( opclabs.doc-that.com/files/onlinedocs/OPCLabs-ConnectivitySt...kOPC%20Product%20Editions.html  ).

If you have made a prototype and you are *not* calling CallMethod or CallMultipleMethods on the EasyUAClient object, then you are not using the OPC UA "methods" feature.

Note, however, that the Standard edition runs on .NET Framework and not on .NET (e.g. .NET 8, 9). You need Professional edition for "new" .NET runtimes anyway.

Regards
 

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15 Dec 2025 15:47 #14500 by jmalda
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15 Dec 2025 15:36 #14499 by support
Hello.

If you do not own a commercial license, and you not evaluating QuickOPC or OPC Wizard, but instead are using it to develop software - even if it is not yet in the production - you need to purchase the license.

I hope this helps.
Best regards

 

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15 Dec 2025 14:47 #14498 by jmalda
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