Also found in: Acronyms.


An application programming interface that is common to all Microsoft's 32-bit Windows operating systems. These currently include: Windows 95, Windows 98, Windows NT and Windows CE.

This article is provided by FOLDOC - Free Online Dictionary of Computing (


(1) A 32-bit version of Windows. Many editions of Windows have come in both 32-bit and 64-bit versions. See 32-bit computing and x86/x64.

(2) Win32 is the programming interface (API) for 32-bit and 64-bit Windows operating systems. Starting with Windows 95, developers write applications that call the routines in the Win32 API. See WinRT and UWP.

API          Supports Windows

 UWP          Win 10, Xbox, Surface Hub

 WinRT        Win 8, Win RT

 Win32        95/98, NT, 2000, XP, 7, 8 and 10

 Win32c       95

 Win32s       95, 3.1

 Win16        3.0, 3.1
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
Win32 and WinRT apps are not as different as you might think.
Microsoft told Unix developers, users and ISVs that by using Bristol's Windows-to- Unix bridge that they would be able to develop applications using Win32 APIs confident in the knowledge they would also run on Unix.
"After installing this update, some users cannot set Win32 program defaults for certain app and file type combinations using the Open with.
Belgrade, Serbia and Montenegro, February 16, 2012 --( PC Guard for .NET (Win32) is a professional software protection and licensing system for .NET framework and Windows 32bit applications.
Win32. Generic!BT were still the chief detection, slightly down to 23.54 percent of total detections.
Win32.Generic!BT were still the chief detection, slightly down to 25.11 percent of total detections.
Nathan, who is a software engineer at Microsoft, explains Extensible Application Markup Language (XAML) syntax, WPF's built-in controls, layout with panels, data binding, 2D drawing support, 3D APIs, animation in procedural code and XAML, and interoperability with Win32 and Windows Forms.
The HandsFree Networks support system, currently available only for Win32 systems, uses a low-impact, event-driven symptom detection and resolution engine that detects events on a desktop, server, or network.
Arguably the best Perl books in print -- Programming Perl, Learning Perl, Perl in a Nutshell, Perl Cookbook, Learning Perl on Win32 Systems, and Advanced Perl Programming -- are now available on a single CD-ROM in the immensely convenient "Perl CD Bookshelf" by O'Reilly & Associates.