Microsoft OS/2 SDK 1.05
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These were superseded by the smaller and less expensive Microsoft OS/2 Programmer's Toolkit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
August 1988 - SDK 1.05
The OS/2 SDK version 1.05 includes a newer OS/2 1.1 pre-release that looks similar to the final 1.1 release.
Downloads
| Download name | Version | Language | Architecture | File size | Downloads |
|---|---|---|---|---|---|
 Microsoft OS2 SDK 1.05 (Aug 1988) (5.25-1.2mb) |
1.05 (Aug 1988) | English |
|
6.12MB | 1 |