The key HKEY_LOCAL_MACHINE/SOFTWARE/ODBC/ODBCINST.INI contains driver-specific data. For each driver installed, there is a value (REG_SZ) including the remark "installed" and the driver name under the key ODBCDrivers. For ADABAS,
HKEY_LOCAL_MACHINE
SOFTWARE\ODBC\ODBCINST.INI
ADABAS D=Installed
is stored here.
An additional key exists for each driver under the key ODBCINST.INI. That key corresponds to the name of the installed driver. For example, a key ADABAS D is stored for ADABAS. Under that driver key, the driver and setup DLL names are stored as values (REG_SZ). These entries are used by the ODBC Administrator to load the corresponding DLL. For ADABAS,
HKEY_CURRENT_USER
Software\ODBC\ODBC.INI\ADABAS D
Driver=C:\ADABAS\pgm\sqlod32.dll
Setup=C:\ADABAS\pgm\sqlsp32.dll
are stored here.