[MSDN Library June 1998] APPNOTES.TXT: Microsoft Windows (55.2380952380952%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Windows 3.x Retail Product
[MSDN Library June 1998] APPNOTES.TXT: Microsoft Windows 3.1 (52.4603174603175%)
MSDN Library Visual Studio 6.0 > Knowledge Base > Windows 3.x Retail Product