Listing/Connecting to Local OPC Server (Kepware) not working on 64-bit version

[natoferreira]

Hey guys,
I was using the demo (64-bit compilation) with no issues when listing/connecting to remote OPC servers. Now that I need to list the local servers and connect to one of them, I always get:

• No servers listed, when "iCatInfo->EnumClassesOfCategories(1, Implist, 0, NULL, &iEnum);" is called;
• "REGDB_E_CLASSNOTREG Class not registered" (0x80040154), if I ignore the list and force try to connect to a given server (specifically when I call iUnknown->QueryInterface(IID_IOPCServer, (void**)&iOpcServer);).

If I compile everything on 32-bit, everything works flawlessly.

I'm on a Windows 7 64-bit with KepWare 5.11. I've also installed OPC Core Component 3.0.105.1 and then moved to 3.0.106 to try solving the issue, but no luck.

Are you guys facing the same issues on a 64-bit system? Any guesses on what may be wrong?

[RedQueen42]

Did you find a solution for this problem? I may have the same right now.

[MatrixYuQ]

I have the same question.I used OPC servers is KEPServerEX 6 and OPC Core Component 3.0.105.1 .

[MatrixYuQ]

On 64-bit.I don't get OPC Server list.But i force try to connect server is OK.