>>UPDATE. I wanted to be sure that it is understood that all VCX libraries are inside the application executable.
>
>I realized today (as I already did many times) that maintaining a good documentation for each customer is very important. This problem (above) was due to some custom work I did for this customer (in 2006). Then I simply forgot about it. Good thing that today I remembered (how, I don't know). But this pressure of remembering things is getting to me. Never again (I probably said that already many times :)

WOW, you can remember things from 2006. I cannot remember what did I do less than 1 month ago...