Subject IBO and fbclient.dll

Using Fb 3.0 requires the FB3 fbclient.dll client library. At run time I have no problem using FB3 and IBO. I have fbclient (fb3) available in the program root folder and in Windows' system folder.

In design time if I try to open a FB3 database inside my TIB_Connection I get error message "connection rejected by remote interface". I am supposing this is because and IBO connection is using an older client library; and if I can get IBO to use the FB3 fbclient.dll the connection will be made OK.

Where does IBO look for the FB client library at design time?