>>What? Prove it!
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>>For maximum performance the exe should be on the local machine. The code in that exe is not much different from the stored procedure code inside a DBC. Therefore the DBC may be placed on the local machines. If it were on the local machine, there'd be no need to try to connect one hundred thousand times.
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>This is a multi-user application which should be able to work with Network database.

A "multi-user application" can have local exes and local dbcs. The DBFs need to be shared, not the DBC.