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Desktop interface will not open; receive the expression On Click error
Last Updated a year ago

Q: The Desktop interface will not open. I get an error message:

Desktop Edition: "The expression On Click you entered as the event property setting produced the following error. File format no longer supported."

Client Edition: "The expression On Open you entered as the event property setting produced the following error: Error accessing file. Network connection may have been lost ."

A: These messages started to appear after Microsoft's March 2016 MS Office 2010 Update: KB3085515.
The official fix from Microsoft will arrive in the April 2016 MS Office 2010 Update.

Microsoft recommends removing the update as a temporary solution.

Here is one of the Microsoft articles that provides details: http://blogs.technet.com/b/the_microsoft_access_support_team_blog/archive/2016/03/09/you-may-encounter-errors-with-your-accde-mde-files-and-or-wizards-after-installing-the-march-update-for-office-2010-kb3085515.aspx.

Tags: startup, start up, login, log in.

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