not tried, in fact we only work with this opc, and other machines are working perfectly since uninstalled and installed again opc, but it still fails!

hello, I'm trying to connect to server opc: CODESYS.OPC.02, the text of the error message is exactly what I wrote up there, nothing else, the text is as follows: OPC operation failed - can not supply ClassFactory request class, the error itself, only happens when trying to communicate the software demo, however, can not communicate, then I think the same thing is happening.
carefully Alison R. S. Haubert.

hello, I have a problem here, opc is not communicating with my software, and when I try to get some information for software demo he accuses me the following error - OPC operation failed - can not supply ClassFactory request class - I went online and found pequisando that this problem should be related to a. dll corrupt or something, I've tried everything I know to try to resolve the problem, but without success, WILL SOMEONE eVER HAD a PROBLEM LIKE AND kNOW HOW TO sOLVE IT?
obs:I use windows xp service pack 2
I thank you for understanding.
carefully Alison R. S. Haubert.