Regarding not using the Daz Install Manager (DIM) mentioned above: The TWO EXPLORER WINDOW DRAG METHOD.

For Tigger Spings: I don't use the Daz manager either. In Win7 (and 8) I simply open two explorer windows. I double click on the zip file to open it in one. Then I drag the Daz Runtime folder from it along with the occasional Documents folder (the latter in a separate movement; optional if you want to keep the documenation together) from that explorer window over to the window that shows my destination folder that contains "Runtime" (as opposed to the actual "Runtime" folder itself, if you're managing multiple Runtimes; That is to say you drag into one level up from the folder that has "Runtime" in it).

The wording may sound muddled, but if you go through it you'll see what I mean.

I don't touch the Daz content folder and don't need to rezip the Daz folder at all.  You can even archive these files to CDs or DVDs and use this technique leaving everything intact as you get it.