Due to the differences between FS1 and FS2 this is not possible. There is however a Switzerland DLC for FS2 available.
Ich habe mich gefragt ob die schönen Szenerien für die Schweiz im FS2 verwendet werden können. Geht das?
MartinM , the Switzerland DLC for FS2 is a jewel, even better than the FS1: and more, you can download cultivation (=autogen). Search "Drassault" cultivation or you can find Switzerland Cultivation for ORBX.
The Swiss huts by arth61 are all sketchup models: swiss huts
I started once with converting the Bluemlisalphuette but there were some problems and I did not have the time to follow up. It is necessary even with the conversion tool ModelConverterX to use in addition a 3d design programme and have a certain understanding of such a programme. Hence I gave up. But it would be nice to have these sceneries from Aerofly FS1 and/or have more Sketchup models for the swiss dlc.
Swiss obstacles are available here
I hope Krzystof will convert these swiss sceneries one day when he finished with the aircraft.