 They proposed PWI to various companies and organizations including X/Open, IEEE and Unix International.The previous day, Microsoft had announced SoftPC, a Windows to Unix product created by Insignia Solutions as part of a program where Microsoft licensed their Windows source code to select third parties, which in the following year became known as Windows Interface Source Environment (WISE).Later that month, Microsoft also announced Windows NT, a version of Windows designed to run on workstations and servers.