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Yes, Kepware's ClientAce OPC Client Toolkit provides Visual Basic .NET and C# programmers with tools to easily develop OPC client applications. It can create the following types of client applications:

• OPC DA 2.05 or 3.0 clients.
• OPC UA clients with support for certificates and User Authentication. This is available in ClientAce version 4.0 and higher only.

Note: For more information, refer to ClientAce OPC Client Toolkit.