OK, Poser8 is a 32 bit app and does work fine inside program folders.
That is the default location and works like a charm.

Can it be that your ferewall is blocking the Poser.exe?
Check your firewall settings and allow Poser and ffrenderer to start and work.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!