Just another, smaller, example of an asset plugin for MH Portable for testing. This contains nails by: pixel_pretty (CC-BY), wolgade and grinsegold (CC0). Also the related target by grinsegold.
Not sure why but had a little trouble getting these to display initially and had to do some tweaking to get all to work. Once that was done renamed all so would not be confused with originals.
So have a single set of fingernals and three matching sets of fingernails and toenails. Worked in mockup of MH Portable 1.1.0 and 1.0.2, not tested in export to Blender.
I should have mentioned that the PortableApps.com paf file is basically a self-extracting NSIS archive. 7-zip can extract the files, or you may change the extension to zip and extract with other utility to see internal format.
https://www.dropbox.com/sh/smna78ia281drae/AADRwWmBtnbKR4uUn02D4_EMa/Nails_Pack_1_for_MakeHumanPortable_1.1.0.paf.exe?dl=0 ( 2.5 MB )
I'll stop now till MH Portable's layout is set for sure and ready.