Because Banyan could not quickly develop an OS to take advantage of newer hardware, and apparently did not understand that the StreetTalk directory services, not the shrink-wrapped OS, was the prime value added—the company lost ground in the networking market. VINES sales rapidly dried up, both because of these problems and because of the rapid rise of Windows NT. Banyan increasingly turned to StreetTalk as a differentiator, eventually porting it to NT as a stand-alone product and offering it as an interface to LDAP systems.