I followed  the link.  It's about the DAZ Injection Builder (IPB) for references to the 'Link Library'.  More about the Injection Pose Builder here http://forum.daz3d.com/viewtopic.php?t=97405
I don't think you can get Aiko 4 *.lib files. You need Victoria4, load the figure inject Aiko 4 morphs save that as a *.cr and this *.cr has to be opened and worked about in the IPB to inject there your morphs for Aiko4 you make with IPB. Just a guess.