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Article ID: 128796, created on May 4, 2016, last review on May 4, 2016

  • Applies to:
  • Operations Automation

Symptoms

The following error is shown when trying to access customer's site with database:

Microsoft OLE DB Provider for ODBC Drivers error '80004005'
[Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

Cause

On 64-bit Windows systems application pools are configured to run in 64-bit mode by default, however this site needs 32-bit mode.

Resolution

Go to IIS Manager, find the application pool where this website is located and set the parameter Enable 32-bit Application to True.

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