Microsoft OS/2 Programmer's Toolkit (1988) 0 OS2

The Microsoft OS/2 Programmer's Toolkit 1.0 contains advanced OS/2 1.0 API sample code and documentation for use in conjunction with Microsoft's high-level programming products, sold separately. Software Development Kit, which bundled programming language support and pre-release components.

• 1.0

Microsoft OS/2 SDK (1987) 1 DOS OS2

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.

• 1.00-1.01
• 1.02
• 1.03
• 1.04
• 1.05
• 1.06
• 1.10
• 2.0