Windows 1.0 Beta Release

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Beta Release
Build of Windows 1.0
Beta Release
OS family
Architecturex86 (16-bit)
Compiled1985-05-08
Timebomb
Works in
About
Win10betaaboutbox.png
TCB.png TCBGallery.png BA.png

Windows 1.0 Beta Release is a pre-release build of Windows 1.0 compiled on 1985-05-08. It includes an updated RTM-like installer, mostly finalized UI, color support on the IBM PC and additional applications, alongside redesigns of existing ones from the Alpha. Source code and documentation for the developers was moved to a separate package called the "Software Development Kit" (SDK).

This build was possibly also released for various non-PC-compatible machines, such as Zenith Z-100 and RM Nimbus PC-186, but this has not been fully confirmed yet.

Installation[edit]

Before you run setup, it is recommended to create the directory you want Windows to be installed to, as there is a chance that setup fails to create the directory. For high-resolution color EGA mode, select "Enhanced Graphics Monitor with Enhanced Display" during Setup.

This beta will run on the following operating systems:

For MS-DOS 5.0 or 6.x, run: SETVER WIN100.EXE 3.30 before loading Windows. For DOSBox, run ver set 3 30. Failure to do this can result in the build crashing on startup.

Printer installation[edit]

Although setup says you can press Q to not install any printers on the printer selection screen, this doesn't actually work and you must install one of the printers to continue.

Interesting findings[edit]

Double click to close a window[edit]

The option to double-click on the system box to close a window has not been implemented yet, so one must open the system menu and choose the "Close" option to quit applications.

File associations in WIN.INI[edit]

Although Calendar is a simple floating date picker in this build, it's associated with .CAL files. This suggests a more advanced Calendar like the one in later builds was already in development at this point but left out.

The Terminal application is not included with this build, but is associated with .TRM files. Much like the above case with Calendar, this suggests the Terminal application was already in development but not included with this build. The file extension for Cardfile files is .IDX in this build. In later builds it was changed to .CRD.

Color scheme[edit]

Despite the fact that this build officially introduced color support on the IBM PC as it includes drivers for color EGA display modes, the default color scheme remains monochrome. The user can manually add colors to the color scheme in the Control Panel. Applications use various background colors regardless of the system color scheme.

About dialogs[edit]

This is the first build where applications feature an About dialog with copyright and version information. However, at this point the overall design of this dialog has not been finalized yet, as different applications display different strings here. Calculator, Clock and Reversi say "Version 1.00" and "April 1985", MS-DOS Executive and Cardfile say only "Beta Release", Control Panel and Notepad say only "Version 1.00", while Paint says "Beta Version, 5/6/85".

Gallery[edit]