dunno about CSO but you could always do it with VBA.
Below is from Visual Basic help in Word.
Returns a key setting value from an application's entry in the Windows registry or (on the Macintosh) information in the application’s initialization file.
GetSetting(appname, section, key[, default])
The GetSetting function syntax has these named arguments:
appname Required. String expression containing the name of the application or project whose key setting is requested. On the Macintosh, this is the filename of the initialization file in the Preferences folder in the System folder.
section Required. String expression containing the name of the section where the key setting is found.
key Required. String expression containing the name of the key setting to return.
default Optional. Expression containing the value to return if no value is set in the key setting. If omitted, default is assumed to be a zero-length string ("").
If any of the items named in the GetSetting arguments do not exist, GetSetting returns the value of default