You need to install the IBM® Network Primary Logon Client (IPLC) product to use the logon server support of iSeries™ NetServer™.
Configure iSeries NetServer as a logon server from the Next Start dialog box selected from the General page of iSeries NetServer properties.
Windows® 2000 Professional and Windows XP Professional clients require the installation of the IBM Networks Primary Logon Client (IPLC) product to use the logon server support. You can download this product from the iSeries NetServer Web page (www.ibm.com/eserver/iseries/netserver/primarylogon.htm). This Primary Logon Client overrides the normal Windows logon flows and uses networking APIs that iSeries NetServer supports.
Only install the IPLC on Windows workstation installations. Never install it on a PC configured as a system or a terminal system because it will conflict with that type of installation and will not allow any user to log on. A PC system does not sign on to another system. Also, remember that iSeries NetServer Domain Logon Support can remove the need for such systems.