In a Windows 64-bit environment there are two different registries: 32-bit and 64-bit. This can cause issues to occur when setting up System DSN ODBC sources because OnBase requires the settings be written to the 32-bit registry, but the default behavior is to write to the 64-bit registry. Since the OnBase Client since it is a 32-bit application, it only displays ODBC connections written to the 32-bit registry.
In order to create 32-bit ODBC connections under 64-bit Windows, the odbcad32.exe program in the %systemroot%\WINDOWS\SYSwow64 directory must be used, instead of the default version under WINDOWS\system32. ODBC sources created via the SYSwow64 version of this executable are written to the 32-bit registry. The 64-bit version (found in the WINDOWS\system32 directory) stores its System DSN settings in the 64-bit registry.