Upgrading a SLIK-DA/UA OPC Server

The newer version of the SLIK-DA toolkit can be installed right over the existing version to overwrite it. Before performing the installation, it is recommend that a backup of your OPC Server Visual Studio project is created.

Once the install of the new version is complete, the old SLIK-DA control on the Windows Form must be replaced with a new instance of the SLIK-DA control. 

1. Before deleting the old SLIK-DA control from the Windows Form, you must take note of the following properties: Name, AppID, CLSID, AppName, Description, ProgID and VendorName.
2. Remove the old SLIK-DA control from the form and delete the old reference to Interop.NDISLIKDA.
3. Save and shut down Visual Studio and re-open your Project.
4. Add the new SLIK-DA control to the form, and re-assign the following properties: Name, AppID, CLSID, AppName, Description, ProgID and VendorName.
5. Go to the Properties of the SLIK-DA control on the Form and find the Events (Lightning Bolt Symbol). Make sure the Events of the control are properly tethered to the Events defined in your code.
6. Adding the new control will restore Interop.NDISLIKDA as a reference. Open the properties for this reference and set "Embed Interop Types" to False if targeting .NET Framework 4.0 or newer. 
7. Test your OPC Server on the development machine.
8. Deploy your OPC Server to your target machine, but do NOT install the SLIK-DA toolkit onto your target machine. Instead, you can follow along with this FAQ for guidance on what is involved in deployment. This is just one option of deployment, but the concepts remain the same for other methods. 
9. Test your OPC Server again after deployment.