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OLE Error 80131534 when creating TEasyUAClientConfiguration - by: jkahlert

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Our driver based on QuickOPC 2021.2 worked well until the driver (including QuickOPC 2021.2 Production) was re-installed. Now an OLE Error 80131534 including the class ID for CLASS_EasyUAClientConfiguration appears if a TEasyUAClientConfiguration object is created under Delphi 10.4 and Windows 10 (see attached screenshot). I checked the Windows registry for missing class specifications but everything seems to be o.k.

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