First of all I want to say "thank you" as well. I have several ideas/proposals.

Would it be possible to integrate this into the context menu for .zip files? When you rightclick a zip-file, you have the option "Open with poser installer".

Then you have a dropdown box with the predefined runtimes (from the Runtimes.txt already in your app).

And it should list the folder names of the libraries folder included in the zip-file in a second step in a textfield (yeah I come from the web programming side :-).

So it would be possible to change the names of the folders that go into the libraries folders.
For example: "poses/freestuff creator xyz" so you it could be changed into "poses/V4 sitting poses". The names of the folders for textures and geometries cannot be changed, otherwise the files could not be found from poser.

Thanks
facehugger