если речь идет о ключах реестра для хранения настроек приложения то у аксесса (по крайней мере в XP точно есть) есть набор функций

GetSetting Function Example
This example first uses the SaveSetting statement to make entries in the Windows registry (or .ini file on 16-bit Windows platforms) for the application specified as appname, and then uses the GetSetting function to display one of the settings. Because the default argument is specified, some value is guaranteed to be returned. Note that section names can't be retrieved with GetSetting. Finally, the DeleteSetting statement removes all the application's entries.

' Variant to hold 2-dimensional array returned by GetSetting.
Dim MySettings As Variant
' Place some settings in the registry.
SaveSetting "MyApp","Startup", "Top", 75
SaveSetting "MyApp","Startup", "Left", 50

Debug.Print GetSetting(appname := "MyApp", section := "Startup", _
key := "Left", default := "25")

DeleteSetting "MyApp", "Startup"