It is recommended you wait until 48 hours after any newsletter has been sent and then perform the upgrade.
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This error is specific to Access 97 and versions of Connector/ODBC earlier than 3.51.02.
Update to the latest version of the Connector/ODBC driver to resolve this problem.
You should perform this upgrade at a time when you are not delivering a newsletter.
If a newsletter is currently being delivered wait until the send has completed.
For more information, see Can't connect to [local] My SQL server.
The following error is reported when using transactions: .