Herman,
If there is a DotNet interface for this then you can use this interface.
Otherwise you can use the Dotnet Interop layer to talk to the OLE compontent.
I personally have no experience with OPC, but I am sure that it will work smoothly.
Almost all the Ole Server I have used in DotNet worked perfectly including events etc.
Robert
Herman wrote: Dear developers,
I used VO in several industrial applicatiuons for logistic/transport and logging purposes. In order to do that, i had to implement OPC (OLE for Process Control, see opcfoundation.org/ for definitions and www.matrikonopc.com/ for OPC testing utilities). I would be VERY glad if you could enabele this interface for future development of these running applications.
Thanks,
Herman