Poser 7 has very few dependent files stored outside its own app folder. Those that are stored 'somewhere else' - depends on which OS you have - are .ini and preference files. I'd recommend copying these from:

C:Documents and Settings[your name]Application DataPoser 7 (Windows XP) or
C:Users[your name]AppDataRoamingPoser 7 (Vista)

and keeping them in a folder (outside the Poser 7 folder and any external Runtime folders) on your portable drive so that you can copy them into the correct location on each machine you use Poser on. That way you're always using the same prefs, but you'll have to manually ensure that everything is kept in sync.

As you've only been through the install routine on one machine, the others won't know that .pz3 files open with Poser. This doesn't matter if you use File>Open... from within Poser. If you really want the file association to be made, proceed as follows:

Right click on a .pz3 file and 'Open with...'   You will not see Poser listed because there's no registry entry for it. But you can browse to the Poser.exe file on your portable drive and elect to 'Always use this program to open this type of file'. The precise details vary depending on OS. If in doubt, read the Windows help file... search for 'file type association'.

Additionally, I'd make sure that your portable drive is assigned the same drive letter on all your PCs. Make it something from the middle or the end of the alphabet so that DVD drives, USB sticks and all the other things you can plug in don't grab the letter. In my experience anything up to H: should be avoided.

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Windows 10 x64 Pro - Intel Xeon E5450 @ 3.00GHz (x2)

PoserPro 11 - Units: Metres

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