Microsoft OS/2 SDK 1.03
The Microsoft OS/2 SDK includes pre-release builds of OS/2, beta development tools, sample code, and loads of documentation. These were released prior to the OS/2 1.0 and 1.1 releases. Microsoft charged $3,000 in 1987 for the SDK. It was criticized as overpriced, buggy, and slow.
These were superseded by the smaller and less expensive Microsoft OS/2 Programmer's Toolkit
Much more information can be found here: OS/2 Museum, OS/2 Beginnings
Screenshots
Release notes
March 1988 - SDK 1.03
The OS/2 SDK version 1.03 includes the first OS/2 1.1 pre-release kernel, the first public Presentation Manager builds, Microsoft C 5.1, MASM 5.1, The OS/2 Programmer's Toolkit 1.0 (available here as a separate download), a draft copy of Charles Petzold's Programming the OS/2 Presentation Manager, a guide on converting Windows application to the Presentation Manager, Windows 2.03 (separate download), and the Windows 2.03 SDK (separate download),
This OS/2 pre-release adds support for disk partitions larger than 32MB.
Wanted: Microsoft OS/2 DDK 1.03 April 1988
Downloads
| Download name | Version | Language | Architecture | File size | Downloads |
|---|---|---|---|---|---|
 Microsoft OS2 SDK 1.03 (Mar 1988) (3.5-1.44mb) |
1.03 | English |
|
24.68MB | 1 |