For the record: Without re-rigging, I can usually coax free Noesis into porting rigged figures from eg SFM 'Ragdolls' (MDL+VTF) and XNA/Lara ( .MESH.ASCII directly, re-exported if XPS or .MESH, plus any textures) and get an FBX that usually 'plays nice-ish' with Poser.

Upside, usually only one (1) or a few (<10) sub-rigs. First in list usually allows wary posing.

Downside, scaling may be wildly huge or tiny, YMMV. IIRC, P_12 has 'auto-scaling'. Plus, texture allocation may be wonky, due Poser 'diffuse' vs  specular / albedo etc... 

And, import may go horribly wrong, spawning ~20, ~30, even ~70 sub-rigs. IIRC, I once got ~130+: I sorta wept and, rather than wrangle via hierarchy,  just closed Poser.

As yet, even respecting TDA porting prohibition, I've found no simple way to get rigged figures out of MMD's PMX format. Yes, Blender can do it via a complete re-rig, but that's beyond my skills...

This guy with vaguely familiar face began as an SFM Clone Trooper by stefano96 on DA, went via Noesis to FBX. 300% import scale, 7 sub-rigs...

"Where am I ? What happened ??"