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>So in you example I am assuming the RV has been based on the connection named 'C09_VSO3Data_FB' and I have 2 different ODBC DSN created namely 'C09_VSO3Data_FB_12345' and another for eg. 'C09_VSO3Data_FB_67890'.
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>If so this is pretty near to what I want. Then comes the question where/when can I execute the above command? Will it be enough to execute this command once at the time the appliaction has been install and run for the first time?
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You can verify at application startup if registry entry for DSN exists, based on folder checksum value. If not, create the entry.
You can also check if connection string is the one needed. If not, overwrite it with new appropriate values.