I rarely use the DSON importer but the way I use it is as follows. Firstly unzip the file and install the DSON importer, As I said before this goes in the folder in the program files(x86) Smith Micro poser 10 (This can only be manually installed. The runtime file merges with the runtime in this folder.) You can check that it has been installed in the right place by clicking on scripts in the menu bar of Poser, there should be an item "DSON support" (I seem to recall that the importer comes in 32 and 64 bit versions, I might be wrong here, but if it is the case make sure you have used the 32 bit version, Poser 10 is only 32 bits even if you have a 64 bit system.) Now I install all DAZ content that needs DSON importer (I've only ever used free stuff from DAZ) in the default My DAZ 3d library using the DAZ install manager. I have added this library to my Poser libraries by using the add library button in the library folder. Make sure you install not only the main product file but also any file labelled .... Poser CF,,. As I said I've only ever used it as an experiment, there's more than enough native poser content out there for my pockets.