3.Internet Explorer began conceptually as one of the major components of the
unreleased Windows 97,[citation needed] imagined as the successor to
Windows 95. The project was started in the summer of 1994 by Thomas
Reardon and subsequently led by Benjamin Slivka, leveraging source code
from Spyglass, Inc. Mosaic, an early commercial web browser with formal
ties to the pioneering NCSA Mosaic browser. In late 1994, Microsoft
licensed Spyglass Mosaic for a quarterly fee plus a percentage of
Microsoft's non-Windows revenues for the software. Although bearing a name
similar to NCSA Mosaic, which was the first widely used web browser,
Spyglass Mosaic was relatively unknown in its day and used the NCSA Mosaic
source code only sparingly.