>>Transactions in this context refer to the DTC (Microsoft Distributed Transaction Coordinator) - which is an NT service. SQL Server and Oracle support DTC. VFP however, does not.
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>My VFP DLL accesses FoxPro tables in a DBC. I use FoxPro SQL SELECT's to query the data and send the results to the VB DLL. I am not familiar with MDTC. Is it something I should be concerned about?

Only if you want to do transactions.