Microsoft has released its SNA Server version 3.0. The new host integration software facilitates the integration of IBM mainframe and AS/400 systems with the Windows NT Server network operating system and PC desktops; it also supports up to 5,000 users and up to 15,000 host sessions. Microsoft SNA Server 3.0 has an estimated retail price starting at $1,359, which includes five client licenses. Upgrade versions start at $679. The software runs on Windows NT Server version 3.51 or later.