Setting DXF to save active sheet only doesnt work?

OK, I have just noticed that using SetUserPreferenceToggleand swDxfMultisheet_e to the active sheet only doesn't actually doanything in 2008.

I have set the value, read it back in and it shows that its readingas true, but when I save using model.SaveAs4 ormode.Extension.SaveAs, it disregards this setting and saves aswhatever the system has set it to if you manually went to optionsand looked.

Any idea why this is? It works fine in 2007, but not 2008.

To explain a bit more. If the global SW options for DXF saving isset to save all sheets, not active sheet only, and in API I set itto save active sheet only, it still saves all sheets, even when theAPI is confirming that the option is set to active sheet only. Itsbasically ignoring what you set, but I doesnt in SW 2007SolidworksApi macros