Windows 3.1 build 103

Windows 3.1 build 103 is the official RTM build of Windows 3.1, released on 6 April 1992. The checked/debug compile can be obtained by installing the Windows 3.1 SDK and running a batch file in the SDK folder.
==Findings==
===Switching from free to checked/debug compile===
To switch to the checked/debug compile, you will need to install the SDK. Launch setup, and on the page where you select the components, select only "Debug binaries". After installation, select "Debug Windows 3.1" or "Debug Enhanced Windows 3.1" in the "Windows SDK" program manager group. After a restart, Windows will start, but a watermark appears at the bottom right of the screen saying "Debug Windows 3.1". This means that now the checked/debug compile of this build is running.
To switch back to the free compile, select "Non-Debug Windows 3.1" from the "Windows SDK" program manager group. After another restart, you are back.
== Gallery ==
Win31103setup1.png|Express or custom setup
Win31103setup6.png|Directory confirmation
Win31103setup7.png|Copying files
Win31103setup10.png|Disk 2
Win31103setup12.png|Loading GUI setup
Win31103setup14.png|Name and company
Win31103setup15.png|Verify
Win31103setup16.png|Optional tasks
Win31103setup13.png|Components
Win31103setup18.png|Readme files
Win31103setup19.png|Accessories
Win31103setup20.png|Games
Win31103setup21.png|Screensavers
Win31103setup22.png|Multimedia components
Win31103setup23.png|Virtual memory
Win31103setup24.png|Change
Win31103setup25.png|Copying files
Win31103setup26.png|Disk 3
Win31103setup33.png|Confirmation to modify AUTOEXEC.BAT and CONFIG.SYS
Win31103setup34.png|Ditto
Win31103setup35.png|Printers
Win31103setup37.png|Setup applications
Win31103setup38.png|Scanning
Win31103setup39.png|Cannot read from drive D: error
Win31103setup40.png|Select applications
Win31103setup41.png|Run or skip the tutorial
Tutorial
Win31103setup42.png|Lesson selection
Win31103setup43.png|Mouse lesson
Win31103setup44.png|Right or left-handed
Win31103setup45.png|When you move the mouse
Win31103setup46.png|How you control the cursor
Win31103setup47.png|Try moving the mouse
Win31103setup48.png|Ditto
Win31103setup49.png|Left-clicking
Win31103setup50.png|Click the Control-menu box
Win31103setup51.png|Double-clicking
Win31103setup52.png|Double-click the Control-menu box
Win31103setup53.png|Dragging
Win31103setup54.png|Drag the Control-menu box
Win31103setup55.png|Select one of these options
Win31103setup56.png|Windows basics lesson
Win31103setup57.png|Groups
Win31103setup58.png|Open the Accessories group
Win31103setup59.png|Icons
Win31103setup60.png|Start Write
Win31103setup61.png|Done
Win31103setup62.png|Maximizing windows
Win31103setup63.png|Where the maximize button is
Win31103setup64.png|Maximize Write
Win31103setup65.png|Done
Win31103setup66.png|Restore button
Win31103setup67.png|Restore Write
Win31103setup68.png|Done
Win31103setup69.png|Minimizing windows
Win31103setup70.png|Where the minimize button is
Win31103setup71.png|Minimize Write
Win31103setup72.png|Minimize the Program Manager
Win31103setup73.png|Both are minimized
Win31103setup74.png|Restore Write
Win31103setup75.png|Done
Win31103setup76.png|Moving windows
Win31103setup77.png|Move Write
Win31103setup78.png|Move it back
Win31103setup79.png|Done
Win31103setup80.png|Resizing windows
Win31103setup81.png|Resize Write
Win31103setup82.png|Resize it back
Win31103setup83.png|Why you would want to resize windows
Win31103setup84.png|Menu-bar
Win31103setup85.png|How to open a menu
Win31103setup86.png|List of commands
Win31103setup87.png|What happens when you click a command
Win31103setup88.png|Click the Open command
Win31103setup89.png|Dialogue boxes
Win31103setup90.png|1st way to select a file
Win31103setup91.png|2nd way to select a file
Win31103setup92.png|How to open a file
Win31103setup93.png|Open a file
Win31103setup94.png|Learned how to select a file in a dialogue box
Win31103setup95.png|Sample dialogue boxes
Win31103setup96.png|Restore the Program Manager
Win31103setup97.png|Active window
Win31103setup98.png|Make Write the active window
Win31103setup99.png|Done
Win31103setup100.png|How to close programs
Win31103setup101.png|Close Write
Win31103setup102.png|Done
Win31103setup103.png|End
Win31103setup104.png|Are you sure you want to exit?
Win31103setup105.png|End of setup
Windows-3.1.103-Boot.png|Boot screen
Windows31-EGABootScreen.png|Boot screen (EGA)
Win3.1-Debug.png|Desktop (checked/debug)
Win31103accessories.png|Accessories group
Win31103games.png|Games group
Win31103startup.png|StartUp group
Win31103applications.png|Applications group
Win31103main.png|Main group
Win31103c1.png|Clock in the digital theme
Win31103c2.png|Clock in the analog theme
Win31103cal.png|Calendar
Win31103card.png|Cardfile
Win31103clip.png|Clipboard
Win31103cm.png|Character Map
Win31103cp1.png|Control Panel
Win31103cp3.png|Color with palette open
Win31103cp4.png|Fonts
Win31103cp5.png|Ports
Win31103cp6.png|Settings for COM1
Win31103cp7.png|Mouse
Win31103cp8.png|Desktop
Win31103cp9.png|Keyboard
Win31103cp10.png|Printers
Win31103cp11.png|International
Win31103cp12.png|Date and time
Win31103cp13.png|386 Enhanced
Win31103cp14.png|Virtual memory
Win31103cp15.png|Settings
Win31103cp16.png|Drivers
Win31103cp17.png|Sound
Win31103dos.png|MS-DOS Prompt
Windows-3.1.103-FileManager.png|File Manager
Windows-3.1.103-Calculator.png|Calculator
Windows-3.1.103-Minesweeper.png|Minesweeper with defaults
Win31103m3.png|Custom Field box
Win31103m4.png|24x30
Win31103mp1.png|Media Player MCI device drivers warning
Win31103mp2.png|Media Player
Win31103np.png|Notepad
Win31103op.png|Object Packager
Windows-3.1.103-Paint.png|Paintbrush
Win31103pif.png|PIF Editor
Win31103pm.png|Print Manager
Win31103readme.png|README.WRI
Win31103record.png|Recorder
Win31103rite.png|Write
Win31103sr1.png|Sound Recorder no sound driver warning
Win31103sr2.png|Sound Recorder
Win31103t1.png|Select default serial port
Win31103t2.png|Terminal
Win31103ws.png|Windows Setup
Windows-3.1.103-Solitare.png|Solitaire
20170730 114007.png|About dialog (Debug)
20170730 180343.png|Demo 1
20170814 210736.png|Demo 2
20170816 001715.png|Demo 3
20170831 015533.png|Demo 4
Windows31-RTM-TaskManagerWarning.png|Task Manager
Win31103es.png|End session
===OEM versions===
File:Windows3.1-3.10.103-Compaq OEM-Boot.png|Compaq OEM boot screen
File:Windows-3.1-Build-103-DEC-OEM.png|DEC OEM boot screen
File:Win3.1-3.10.103-boot-IBM.png|IBM PS/ValuePoint OEM boot screen
File:Win3.1-3.10.103-boot-NEC.png|NEC OEM boot screen
File:Windows-3.1.103-Samsung-OEM-Boot.png|Samsung OEM boot screen
File:Windows-3.1.103-Siemens-Nixdorf-German-Boot.png|Siemens-Nixdorf OEM boot screen (German)
File:Windows-3.1.103-Tulip-Swedish-Boot.png|Tulip OEM boot screen (Swedish)
File:Win3.1-3.10.103-boot-ZDS.png|Zenith OEM boot screen
Category:Windows 3.1x builds