The Microsoft Windows Resource kit is a set of supplementary tools for managing and deploying Microsoft Windows. The first Windows Resource kit was released in 1991 for Windows 3.0. Most, but not all, Windows versions after that had corresponding Resource Kits. These were often freely downloadable from Microsoft.

A tool used for reading, writing, and editing disk images. Most of the disk images (.IMG or .IMA) on this site can be written with this tool. This is a SHAREWARE product, but is posted here for your convenience.

WinLink 3, from Widget Software Ltd, is a utility for communicating between a Psion Series 3 or 3a and Windows. It connects to a Psion mobile device via a serial cable, and presents the contents of the device as a navigable file window.

WINProbe is a commercial system information and diagnostic program from Landmark International, maker of benchmark and diagnostic programs. criticized as being rather buggy. Landmark also produced the separate Sysinfo product for DOS.

WinZip is an archive utility for Microsoft Windows that creates and extracts ZIP files, along with a degree of support for MS Cabinet (cab), ISO, JAR, TAR, and GZipped files.

Word for Word is a document converter that features the ability to convert multiple documents automatically, while retaining as much formatting as possible.

WordPerfect Library, introduced in 1986 and later renamed WordPerfect Office (not to be confused with Corel's Windows office suite of the same name), was a package of DOS network and stand-alone utility software for use with WordPerfect. The package included a DOS menu shell and file manager, whose macros allowed text to be moved from one program to another (for example, from WordPerfect to Calendar, and vice versa), a do-all editor, apparently that of Wordperfect 3.0, which could edit binary files as well as WordPerfect or Shell macros, calendar, and a general purpose flat file database program that could be used as the data file for a merge in WordPerfect and as a contact manager.

WordPerfect Office, from WordPerfect Corp, is a groupware utility that includes a menu shell, text editor, calendar, calculator, notebook, and file manager. It is unrelated to the later Corel office suite by the same name. Earlier versions were known as WordPerfect Library.

Xerox Rooms for Windows is a desktop enhancement for Windows 3.0 and 3.1 that gives them multiple desktops. It features customizable desktop icon "buttons" in each "room" that may represent applications or documents, "doors" that lead to different rooms, separate backgrounds in each room, and a room overview. It can be launched manually, or when Windows starts.

XtraDrive is a hard drive compression program that competed against programs like Stacker and SuperStor. XtraDrive was slightly slower, but was priced lower. before DOS and intercepts disk writes at the BIOS level. This allows many disk utilities to work that otherwise would not. Unlike the other drive compression programs at the time, XtraDrive features easy de-installation.

XTree is an easy to use text-mode file manager. It pioneered the use of a GUI-like hierarchy tree, and provides many integrated file viewers. It competed against many other file managers including Gazelle Q-DOS and Norton Commander

XVision, from Visionware, is a commercial X-Windowing "server" for connecting client Windows 3.x computers to Unix and VMS systems.