Adding a Database Source on a 64-bit System
Issue
I attempted to add a database source using the ODBC Data Source Administrator tool on a 64-bit system, but I was presented with the following error:

Resolution
The ODBC Data Source Administrator Tool accessed from the Control Panel points to the 64-bit versions of system files. However because GoldSim is a 32-bit application on a 64-bit system, the 32-bit version of the ODBC Administrator Tools must be used in order to add database source.
Go to 'C:\Windows\SysWOW64' and start 'odbcad32.exe' (instead of ODBC from the Control Panel) and configure the data source there just like you would on a 32-bit system.
See Also
More Issues on Building and Running Models