Vintage 90s Microsoft Windows 3.1 & MS-DOS Concise Guide Manuals HP Retro Set 3 Set of vintage Microsoft Windows 3.1 and MS-DOS Concise Guide and Reference manuals, published by Hewlett-Packard in 1992. These softcover manuals were originally included with HP Vectra PCs as part of the startup kit and served as quick reference guides for installing, configuring, and using Windows and DOS in the early 1990s. •Publisher: Hewlett-Packard (HP) •Content: Microsoft Windows 3.1 and Microsoft MS-DOS concise guide/reference •Year: 1992 •Format: Softcover manuals •Condition: Vintage pre-owned with light wear (see photos), no major damage Perfect for anyone collecting retro PC manuals, vintage Microsoft software, or early 90s computer memorabilia.