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DCOM and OPC configuration trouble

Hi !
 
I've got trouble using DCOM. I want to acces a remote OPC server with my CVI application.
 
Everything works quite fine in the following way:
- Having my CVI client run on one computer I connect to the other computer where the server is running.
- My CVI Client accesses the OPC locally, the connection to the server is established via DCOM ("execute on 'Server' computer" in DCOMCNFG).
- Both computers (=> and this is the point !!!) are members of the same domain, the user to execute the server is on both machines configured as a member of the domain.
 
And now the question is: I don't get the thing running when my computers are just "workgroup" members. I'm afraid there won't be a domain at my customers' (Server is already there, client will be delivered by me). Do you have any concrete suggestions what to do to get this problem solved ? I'm (nearly) desparated !!! I have read many hints on the web, most of them said, there must be the same users with the same rights on both computers, but this didn't seem to work at all ! Furthermore there were suggestions to some settings in local policies, but these were always so as they ought to on my computers !
 
Please help !
 
 
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An different method to communicate with OPC servers in CVI is using DataSocket. This may be easier than using DCOM.
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