How can I tell if my Windows NT installation is a Not For Resale installation?

A. Microsoft provides Not For Resale versions of Windows NT Serveras part of kits such as Microsoft Developer Network (MSDN). This software is fully functional, except that it has a set number of licenses (i.e., 5 or 10), and you can’t increase the set number.

To test if your installation is a Full or Not For Resale version, downloadWinInfo from http://www.savilltech.com/download/wininfo.zipand check the Installation type value. If it says Not For Resale Version, then your limit is 10 clients.