Finding the user settings directory

Hi fellow scripters,

I can easily find the user settings directory in FrameScript, via Session.UserSettingsDir, but there does not seem to be an equivalent in ExtendScript. I know that FrameMaker knows this directory as the application is using it all the time, and I can see that there is a Constants.UserSettingsDir in the FrameMaker Scripting Guide, but there is no reference to this constant anywhere else, nor is there anything in the FDK documentation.

How do I read this value from an ExtendScript, does anybody know ?

Thanks

Jang