Atlases created in NetCrunch utilizes 32-bit data resources. The list of data resources is presented on the System DSN tab in the ODBC Data Source Administrator window, available from the Windows Administrative Tools.
Therefore data resources are not presented on the System DSN tab in the ODBC Data Source Administrator window since the program utilizes the 32-bit data resources.
To see the data resources of NetCrunch atlases under 64-bit Windows, the location of the ODBC Data Source Administrator window should be changed to folder
SysWOW64 (%SystemRoot%\SysWOW64\odbcad32.exe)