Requirements
- MS-DOS version 2.0
- Two double-sided disk drives or a hard disk
- 320K of memory or greater
- Graphics-adapter card

Changes:
- MS-DOS version 3.2 support
- Enhanced keyboard support
- AT&T 6300 and AT&T 6300 Plus support - 14-, 18-, and 24-point sizes added to TimesRoman and Helvetica fonts
- Generic/Text Only printer driver added
- PostScript printer driver added
- .WRI extension used for Windows Write files (version 1.01 used .DOC extension)
- Support for all features of the international version

Requirements
- MS-DOS version 2.0
- Two double-sided disk drives or a hard disk 320K of memory or greater
- Graphics-adapter card

Changes
- IBM Personal System/2 support
- COMM.DRV revised to support ept port for IBM 3812 Pageprinter
- HP downloadable soft font support

Requirements
- MS-DOS version 3.0
- Two double-sided disk drives or a hard disk
- 512K of memory or greater -
Graphics-adapter card

Changes
- Overlapping windows instead of tiled windows
- LIM Version 4.0 expanded memory support
- Dynamic Data Exchange (DDE) support
- SMARTDrive disk-cache program included
- Revised .FON format for screen fonts
- NEWFON.EXE included to convert 1.x font format to 2.x font format
- Revised Paint file format
- CVTPAINT.EXE included to convert 2.x Paint file format to 1.x format
- About command moved to File menu from System menu
- Printer Timeouts option added to Control Panel
- Mouse Acceleration option added to Control Panel
- Warning Beep toggle added to Control Panel
- Notepad About command reports
- Remaining Free Space
- 3812 Pageprinter no longer supported

Requirements
- 512K Memory
- MS-DOS version 3.0 or later
- One floppy-disk drive AND one hard disk (note that a hard disk is now required)
- Graphics adapter card (the box notes: IBM EGA, IBM VGA, IBM 8514, IBM CGA, Hercules Graphics Card, or compatibles)
- Use of the Microsoft Mouse is optional
- Packaged with 5.25-inch 1.2 megabyte disks OR 3.5-inch 720K disks, plus an order form for free 360K 5.25-inch disks

Changes
- New HIMEM.SYS driver allowing the use of the first 64K of extended memory to store part of Windows, giving approximately 50K additional conventional memory inside Windows
- Support for approximately 65 more printers than version 2.03, bringing the total supported printers to approximately 127
- Support for additional computers
- Support for additional display devices

Requirements Same as Version 2.1

Changes
- Accounts for memory freed by XMS when computing the maximum swap size allowed
- Increased minimum bankable memory required for large frame EMS
- Setup program no longer terminates when incompatible driver is encountered
- Setup corrected to permit set up on 512K machine with MS-DOS version 3.3
- Updated COMM.DRV to solve handshaking problems at 9600 bits per second (BPS)
- Updated HPPCL.DRV driver that supports LaserJet series IID, Olivetti LP 5000, Toshiba
- PageLaser 12, and Intel Visual Edge
- Updated PSCRIPT.DRV driver that supports Olivetti LP 5000 in PostScript mode
- Printing speed increased - Windows/386 WINOLDAP.MOD modified to support high- resolution displays Additions
- AppleTalk library (must accompany the new PostScript driver)
- Toshiba 24-pin printer driver
- 8514/a driver for Windows/386
- /E switch to adjust large frame EMS threshold

Requirements
- 2.11 requirements plus the following:
- MS-DOS 3.1 or higher
- 640K Conventional Memory
- 256K Extended Memory

Changes
- Windows runs in protected mode -- direct extended memory access
- 386 enhanced mode virtual memory provides more memory than physically in RAM by swapping blocks of RAM to the hard drive.
- Color palette managed by Windows 3.0
- Device-independent color bitmap support
- Improved network support
- New dialog boxes, system fonts, and menus
- Graphical environment
- New HIMEM.SYS XMS (spec. 2.0) driver. 16 MB support
- EMM386.SYS expanded memory manager
- 32 printer drivers supporting 170 different printers -- including HP LaserJet III series
- MS-DOS programs run in a window
- Three mode operation (real, standard, 386 enhanced).
- Icon-based Program Manager
- Tree-structured File Manager
- Asymetrix Daybook 1.0a bundled

Requirements
Same as Windows 3.0

Changes
- Maintenance release of 3.0 focusing on very specific problems with: Networking Dynamic Data Exchange Low-memory conditions Setup Extended character support for printers
- Retail package shipped with Windows Q&A booklet

Requirements
Multimedia PC (MPC) Specifications:
- 80386 sx or dx IBM compatible
- 2 megabytes RAM
- VGA or higher (16 color minimum)
- 30 Megabyte hard drive
- CD-ROM (with audio output support)
- 2-button mouse
- Audio hardware

Changes
- Available only through hardware OEM
- New device drivers to connect with specific MPC hardware.
- Introduced Media Control Interface (MCI)
- Enhanced Control Panel includes screen saver, video driver icon (Drivers), joystick control, driver installer, event based sound control, and MIDI mapping control
- New Accessories: MPC Alarm Clock, Media Player,
- Sound Recorder

Requirements
- MS-DOS 3.1 or later
- IBM compatible 80286 or higher (386 recommended)
- 640K Conventional memory
- 256K extended memory (XMS v 2.0 or higher)
- 1024K extended memory recommended on 80286 - 2048K extended memory recommended on 80386
- 5.25-inch (high density) or 3.5-inch floppy drive
- Fixed drive with 6 megabytes free (10 megabytes recommended)
- EGA, VGA, SVGA, XGA, 8514/A, or Hercules video card or 100% compatible card, and monitor
- Mouse recommended

Changes
- Available in upgrade or full package (upgrade does not require earlier version)
- Improved Setup program offers express, custom, network, and troubleshooting setup
- Computer-based Windows 3.1 tutorial
- Consistent dialog boxes
- Improved online Help
- OLE Drag and drop, OLE support in many applications
- Improved File Manager
- Improved printer support through use of UNIdriver
- New video drivers support MS-DOS graphics in a window
- WD1003 virtual hard drive controller
- Virtual memory changeable in Control Panel
- Standard and enhanced mode operation only
- TrueType scalable font support
- Includes multimedia extensions (inclusions)
- Includes new SMARTDrive version 4.0, HIMEM XMS manager 3.0, new EMM386.EXE
- Standard mode can now run with EMM386.EXE running
- Documentation includes "Getting Started" manual
- 266 different types of printers supported

Requirements
- Same as version 3.1

Changes
- Certificate of Authenticity
- More sophisticated hologram and an MS (3M) sticker on box
- An 800 number to call (in the United States & Canada) and check for product legitimacy
- Updated drivers
- Five updated core files
- NetWare support files (from Novell)