The specifications for data sources are stored in the registry database in the key HKEY_CURRENT_USER/Software/ODBC/ODBC.INI. A value (REG_SZ) with the data source name exists under the key ODBC Data Sources for each data source. An additional key with the same name is created for each data source. The name of the data source can be selected freely and be created using the ODBC Administrator. See Section "creating new data sources (windows)".
Example:
HKEY_CURRENT_USER
Software\ODBC\ODBC.INI\ADABAS D
Driver=C:\ADABAS\pgm\sqlod32.dll
ServerDB=MYDB
ServerNode=