VFP can only use 32-bit ODBC drivers. For 32-bit applications under 64-bit Windows there's ODBC Data Source Administrator for the 32-bit ODBC drivers %systemdrive%\Windows\SysWoW64\\odbcad32.exe (usually C:\WINDOWS\SysWOW64\odbcad32.exe).

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>Is there a known issue with running VFP9 on a Windows 2003 64-bit server and connecting to an Oracle database using the 64-bit Oracle 10.2.0.1 ODBC driver ? The Oracle database itself is also 64-bit.
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>* This works on a Windows 2003 32-bit server using 32-bit Oracle 10.2.0.1 ODBC driver.
>CONNECTIONSTRING= "DRIVER=Oracle in OraClient10g_home1;UID=myuser;PWD=mypwd;SERVER=oraserver;DBQ=oraserver;"
>open datatabase oradb
>create connection 'test' connstring (connectionstring)
>?sqlconnect('test') && returns > 0
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>* This does not work on a Windows 2003 64-bit server using 64-bit Oracle 10.2.0.1 ODBC driver.
>CONNECTIONSTRING= "DRIVER=Oracle in OraDb10g_home1;UID=myuser;PWD=mypwd;SERVER=oraserver;DBQ=oraserver;"
>open datatabase oradb
>create connection 'test' connstring (connectionstring)
>?sqlconnect('test') && returns <= 0
>