[Progress Communities] [Progress OpenEdge ABL] Forum Post: RE: ADO connection to Progress OpenEdge database in Visual Studio

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Tinco

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Hi Stephanie, The error message "Data source name not found and no default driver specified" could be caused by a mismatch between the bitness of the application and the bitness of the installed ODBC driver. A 32 bit application needs a 32 bit ODBC driver and a 64 bit application needs a 64 bit ODBC driver. The 64 bit Windows ODBC manager is located on %windir%\system32\odbcad32.exe The 32 bit Windows ODBC manager is located on %windir%\syswow64\odbcad32.exe Hopes this help, Tinco

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