This is a lot of 12 CD-ROM discs that are mostly demo versions or from books with sleeves or cases for the Microsoft Windows developer in the mid 1990s. Mainly from between 1994 and 1997. Titles include InfoMagic Java, NetPower Top Secret For ActiveX ManiaX only! Symantec C++, Optima++ by Powersoft, Microsoft SiteBuilder Workshop, Sybase SQL Anywhere Professional, Perl 5 for Windows NT, Mastering Microsoft Visual Basic 5, Microsoft Developer Network Library Visual Studio 97, and Microsoft Internet & Developer Tools Career Guide.