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Attempt to load Oracle client libraries threw BadImageFormatException RRS feed

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    I have VS 2008 on Win 7 Professional 64bit system and database is Oracle 11g r2 installed on the same machine.

    In Data Source Configuration Wizard --> New Connection Data Source: Oracle Database (Oracle Client) When I click Test Connection after entering Service name, username, and password I get the following error:

    Attempt to load Oracle client libraries threw BadImageFormatException. This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed.

    -- I have no oracle client installed because there is no need in this case, I have the same setup on my laptop Win 7 32bit Oracle 11g r2 32bit and everything is working fine.

    Please let let me know if you guys have solution for this issue. 

    Saturday, July 9, 2011 5:45 AM

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    You can't load 32 bits dll's into a 64 bits process, possible work arounds would be installing the 64 bits components (if available) or change your application from 'any cpu' to 'x86' in the project options to force a 32 bit process.
    • Proposed as answer by Paul Zhou Tuesday, July 12, 2011 9:33 AM
    • Marked as answer by Paul Zhou Monday, July 18, 2011 9:44 AM
    Monday, July 11, 2011 8:09 PM